/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-ext/47_ticket_lock_hc_backoff_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 15:54:56,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 15:54:56,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 15:54:56,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 15:54:56,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 15:54:56,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 15:54:56,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 15:54:56,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 15:54:56,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 15:54:56,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 15:54:56,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 15:54:56,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 15:54:56,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 15:54:56,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 15:54:56,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 15:54:56,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 15:54:56,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 15:54:56,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 15:54:56,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 15:54:56,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 15:54:56,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 15:54:56,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 15:54:56,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 15:54:56,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 15:54:56,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-09 15:54:56,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 15:54:56,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 15:54:56,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 15:54:56,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 15:54:56,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 15:54:56,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 15:54:56,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 15:54:56,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 15:54:56,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 15:54:56,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 15:54:56,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 15:54:56,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-09 15:54:56,836 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 15:54:56,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 15:54:56,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 15:54:56,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 15:54:56,838 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 15:54:56,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 15:54:56,839 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 15:54:56,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 15:54:56,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 15:54:56,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 15:54:56,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 15:54:56,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 15:54:56,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 15:54:56,840 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 15:54:56,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 15:54:56,840 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 15:54:56,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 15:54:56,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 15:54:56,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 15:54:56,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 15:54:56,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 15:54:56,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 15:54:56,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 15:54:56,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 15:54:56,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 15:54:56,842 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-09 15:54:56,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 15:54:56,843 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-09 15:54:56,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-09 15:54:56,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 15:54:57,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 15:54:57,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 15:54:57,134 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 15:54:57,136 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 15:54:57,136 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 15:54:57,137 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/47_ticket_lock_hc_backoff_vs.i [2020-10-09 15:54:57,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bc516ac2/50418c4efd3248cab991e218bb066443/FLAGb50c680b1 [2020-10-09 15:54:57,716 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 15:54:57,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/47_ticket_lock_hc_backoff_vs.i [2020-10-09 15:54:57,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bc516ac2/50418c4efd3248cab991e218bb066443/FLAGb50c680b1 [2020-10-09 15:54:58,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bc516ac2/50418c4efd3248cab991e218bb066443 [2020-10-09 15:54:58,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 15:54:58,050 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 15:54:58,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 15:54:58,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 15:54:58,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 15:54:58,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 03:54:58" (1/1) ... [2020-10-09 15:54:58,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447fadbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:54:58, skipping insertion in model container [2020-10-09 15:54:58,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 03:54:58" (1/1) ... [2020-10-09 15:54:58,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 15:54:58,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 15:54:58,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 15:54:58,653 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 15:54:58,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 15:54:58,767 INFO L208 MainTranslator]: Completed translation [2020-10-09 15:54:58,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:54:58 WrapperNode [2020-10-09 15:54:58,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 15:54:58,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 15:54:58,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 15:54:58,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 15:54:58,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:54:58" (1/1) ... [2020-10-09 15:54:58,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:54:58" (1/1) ... [2020-10-09 15:54:58,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 15:54:58,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 15:54:58,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 15:54:58,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 15:54:58,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:54:58" (1/1) ... [2020-10-09 15:54:58,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:54:58" (1/1) ... [2020-10-09 15:54:58,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:54:58" (1/1) ... [2020-10-09 15:54:58,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:54:58" (1/1) ... [2020-10-09 15:54:58,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:54:58" (1/1) ... [2020-10-09 15:54:58,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:54:58" (1/1) ... [2020-10-09 15:54:58,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:54:58" (1/1) ... [2020-10-09 15:54:58,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 15:54:58,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 15:54:58,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 15:54:58,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 15:54:58,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:54:58" (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 [2020-10-09 15:54:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-09 15:54:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-09 15:54:58,920 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-09 15:54:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 15:54:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 15:54:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 15:54:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 15:54:58,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 15:54:58,924 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 15:54:59,497 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 15:54:59,497 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-10-09 15:54:59,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 03:54:59 BoogieIcfgContainer [2020-10-09 15:54:59,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 15:54:59,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 15:54:59,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 15:54:59,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 15:54:59,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 03:54:58" (1/3) ... [2020-10-09 15:54:59,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa2216b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 03:54:59, skipping insertion in model container [2020-10-09 15:54:59,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:54:58" (2/3) ... [2020-10-09 15:54:59,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa2216b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 03:54:59, skipping insertion in model container [2020-10-09 15:54:59,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 03:54:59" (3/3) ... [2020-10-09 15:54:59,508 INFO L111 eAbstractionObserver]: Analyzing ICFG 47_ticket_lock_hc_backoff_vs.i [2020-10-09 15:54:59,519 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 15:54:59,525 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-09 15:54:59,526 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 15:54:59,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:54:59,584 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-09 15:54:59,604 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:54:59,605 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:54:59,605 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:54:59,605 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:54:59,605 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:54:59,605 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:54:59,606 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:54:59,606 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:54:59,619 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 82 transitions, 169 flow [2020-10-09 15:54:59,670 INFO L129 PetriNetUnfolder]: 20/125 cut-off events. [2020-10-09 15:54:59,671 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 15:54:59,678 INFO L80 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 125 events. 20/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 384 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 71. Up to 6 conditions per place. [2020-10-09 15:54:59,678 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 82 transitions, 169 flow [2020-10-09 15:54:59,685 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 82 transitions, 169 flow [2020-10-09 15:54:59,699 INFO L129 PetriNetUnfolder]: 6/57 cut-off events. [2020-10-09 15:54:59,700 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 15:54:59,700 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:54:59,701 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:54:59,702 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:54:59,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:54:59,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1480703828, now seen corresponding path program 1 times [2020-10-09 15:54:59,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:54:59,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419504490] [2020-10-09 15:54:59,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-09 15:54:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:54:59,794 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:54:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:54:59,808 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:54:59,837 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:54:59,837 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:55:00,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-09 15:55:00,051 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:55:00,053 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-09 15:55:00,066 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,066 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,066 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,067 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,067 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,067 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,069 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,069 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,069 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,069 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,069 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,070 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,070 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,070 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,070 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,071 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,071 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,071 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,072 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,072 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,072 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,073 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,073 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,073 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,073 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,074 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,074 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,074 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,075 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,075 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,075 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,075 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,075 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,076 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,076 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,076 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,076 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,077 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,077 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,077 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,077 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,078 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,078 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,078 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,078 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,079 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,079 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,079 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,080 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,080 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,080 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,080 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,081 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,081 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,081 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,082 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,082 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,082 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,082 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,083 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,083 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,083 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,083 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,084 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,084 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,084 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,084 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,087 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,087 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,087 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,088 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,088 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,088 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,088 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,089 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,089 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,089 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,089 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,090 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,090 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,090 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:00,092 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-09 15:55:00,092 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:55:00,093 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:55:00,093 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:55:00,093 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:55:00,093 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:55:00,093 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:55:00,093 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:55:00,094 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:55:00,098 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 96 places, 110 transitions, 232 flow [2020-10-09 15:55:00,140 INFO L129 PetriNetUnfolder]: 33/197 cut-off events. [2020-10-09 15:55:00,140 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-09 15:55:00,144 INFO L80 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 197 events. 33/197 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 703 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 126. Up to 9 conditions per place. [2020-10-09 15:55:00,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 110 transitions, 232 flow [2020-10-09 15:55:00,149 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 110 transitions, 232 flow [2020-10-09 15:55:00,162 INFO L129 PetriNetUnfolder]: 13/80 cut-off events. [2020-10-09 15:55:00,163 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:55:00,163 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:00,163 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:00,163 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:00,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:00,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1144252124, now seen corresponding path program 1 times [2020-10-09 15:55:00,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:00,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335423994] [2020-10-09 15:55:00,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:55:00,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-09 15:55:00,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:55:00,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:00,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:55:00,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:00,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335423994] [2020-10-09 15:55:00,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:55:00,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-09 15:55:00,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394577376] [2020-10-09 15:55:00,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-09 15:55:00,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:55:00,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-09 15:55:00,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 15:55:00,305 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 110 [2020-10-09 15:55:00,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 110 transitions, 232 flow. Second operand 2 states. [2020-10-09 15:55:00,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:55:00,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 110 [2020-10-09 15:55:00,309 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:55:00,340 INFO L129 PetriNetUnfolder]: 10/141 cut-off events. [2020-10-09 15:55:00,340 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-09 15:55:00,342 INFO L80 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 141 events. 10/141 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 411 event pairs, 0 based on Foata normal form. 18/146 useless extension candidates. Maximal degree in co-relation 148. Up to 6 conditions per place. [2020-10-09 15:55:00,344 INFO L132 encePairwiseOnDemand]: 94/110 looper letters, 0 selfloop transitions, 0 changer transitions 0/82 dead transitions. [2020-10-09 15:55:00,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 82 transitions, 176 flow [2020-10-09 15:55:00,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-09 15:55:00,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-09 15:55:00,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 204 transitions. [2020-10-09 15:55:00,359 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9272727272727272 [2020-10-09 15:55:00,360 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 204 transitions. [2020-10-09 15:55:00,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 204 transitions. [2020-10-09 15:55:00,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:55:00,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 204 transitions. [2020-10-09 15:55:00,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-09 15:55:00,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-09 15:55:00,375 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-09 15:55:00,377 INFO L185 Difference]: Start difference. First operand has 96 places, 110 transitions, 232 flow. Second operand 2 states and 204 transitions. [2020-10-09 15:55:00,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 82 transitions, 176 flow [2020-10-09 15:55:00,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 82 transitions, 174 flow, removed 1 selfloop flow, removed 0 redundant places. [2020-10-09 15:55:00,385 INFO L241 Difference]: Finished difference. Result has 82 places, 82 transitions, 174 flow [2020-10-09 15:55:00,388 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=174, PETRI_PLACES=82, PETRI_TRANSITIONS=82} [2020-10-09 15:55:00,389 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, -14 predicate places. [2020-10-09 15:55:00,390 INFO L481 AbstractCegarLoop]: Abstraction has has 82 places, 82 transitions, 174 flow [2020-10-09 15:55:00,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-09 15:55:00,390 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:00,390 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:00,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-09 15:55:00,603 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:00,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:00,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1955345910, now seen corresponding path program 1 times [2020-10-09 15:55:00,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:00,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924459441] [2020-10-09 15:55:00,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:55:00,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-09 15:55:00,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:55:00,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:00,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:55:00,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:00,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924459441] [2020-10-09 15:55:00,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:55:00,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 15:55:00,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73034371] [2020-10-09 15:55:00,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 15:55:00,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:55:00,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 15:55:00,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 15:55:00,767 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 110 [2020-10-09 15:55:00,768 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 82 transitions, 174 flow. Second operand 4 states. [2020-10-09 15:55:00,768 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:55:00,768 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 110 [2020-10-09 15:55:00,768 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:55:00,970 INFO L129 PetriNetUnfolder]: 351/1200 cut-off events. [2020-10-09 15:55:00,970 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:55:00,978 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1724 conditions, 1200 events. 351/1200 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 8037 event pairs, 61 based on Foata normal form. 0/1063 useless extension candidates. Maximal degree in co-relation 1719. Up to 305 conditions per place. [2020-10-09 15:55:00,988 INFO L132 encePairwiseOnDemand]: 98/110 looper letters, 16 selfloop transitions, 15 changer transitions 0/100 dead transitions. [2020-10-09 15:55:00,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 100 transitions, 272 flow [2020-10-09 15:55:00,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 15:55:00,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-09 15:55:00,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 361 transitions. [2020-10-09 15:55:00,992 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8204545454545454 [2020-10-09 15:55:00,992 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 361 transitions. [2020-10-09 15:55:00,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 361 transitions. [2020-10-09 15:55:00,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:55:00,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 361 transitions. [2020-10-09 15:55:00,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-09 15:55:00,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-09 15:55:00,997 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-09 15:55:00,997 INFO L185 Difference]: Start difference. First operand has 82 places, 82 transitions, 174 flow. Second operand 4 states and 361 transitions. [2020-10-09 15:55:00,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 100 transitions, 272 flow [2020-10-09 15:55:00,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 100 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-09 15:55:01,002 INFO L241 Difference]: Finished difference. Result has 88 places, 97 transitions, 294 flow [2020-10-09 15:55:01,003 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=294, PETRI_PLACES=88, PETRI_TRANSITIONS=97} [2020-10-09 15:55:01,003 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, -8 predicate places. [2020-10-09 15:55:01,003 INFO L481 AbstractCegarLoop]: Abstraction has has 88 places, 97 transitions, 294 flow [2020-10-09 15:55:01,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 15:55:01,004 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:01,004 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:01,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-09 15:55:01,216 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:01,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:01,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1716138660, now seen corresponding path program 1 times [2020-10-09 15:55:01,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:01,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417022216] [2020-10-09 15:55:01,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:55:01,276 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:55:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:55:01,293 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:55:01,313 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:55:01,313 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:55:01,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-09 15:55:01,535 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:55:01,538 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-09 15:55:01,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,565 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,565 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,565 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,565 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,565 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,575 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,575 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,575 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,575 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,575 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,576 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,576 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,576 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,576 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,576 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,577 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,580 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,580 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,580 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,580 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,581 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,581 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,581 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,581 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,581 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,581 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,591 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,591 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,592 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,592 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,595 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,595 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,595 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,596 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,596 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,596 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,596 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,597 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,597 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,597 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,597 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,597 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,600 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,600 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,600 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,600 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,600 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,600 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,601 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,601 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,602 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:01,603 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-09 15:55:01,603 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:55:01,604 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:55:01,604 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:55:01,604 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:55:01,604 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:55:01,604 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:55:01,604 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:55:01,604 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:55:01,607 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 120 places, 138 transitions, 297 flow [2020-10-09 15:55:01,641 INFO L129 PetriNetUnfolder]: 46/269 cut-off events. [2020-10-09 15:55:01,641 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-09 15:55:01,644 INFO L80 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 269 events. 46/269 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1080 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 201. Up to 12 conditions per place. [2020-10-09 15:55:01,644 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 138 transitions, 297 flow [2020-10-09 15:55:01,650 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 138 transitions, 297 flow [2020-10-09 15:55:01,659 INFO L129 PetriNetUnfolder]: 14/82 cut-off events. [2020-10-09 15:55:01,659 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:55:01,660 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:01,660 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:01,660 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:01,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:01,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1929376466, now seen corresponding path program 1 times [2020-10-09 15:55:01,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:01,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030440900] [2020-10-09 15:55:01,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:55:01,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-09 15:55:01,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:55:01,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:01,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:55:01,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:01,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030440900] [2020-10-09 15:55:01,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:55:01,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-09 15:55:01,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198523103] [2020-10-09 15:55:01,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-09 15:55:01,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:55:01,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-09 15:55:01,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 15:55:01,771 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 138 [2020-10-09 15:55:01,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 138 transitions, 297 flow. Second operand 2 states. [2020-10-09 15:55:01,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:55:01,793 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 138 [2020-10-09 15:55:01,793 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:55:01,825 INFO L129 PetriNetUnfolder]: 14/192 cut-off events. [2020-10-09 15:55:01,826 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-09 15:55:01,828 INFO L80 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 192 events. 14/192 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 653 event pairs, 0 based on Foata normal form. 25/199 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2020-10-09 15:55:01,830 INFO L132 encePairwiseOnDemand]: 117/138 looper letters, 0 selfloop transitions, 0 changer transitions 0/103 dead transitions. [2020-10-09 15:55:01,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 103 transitions, 227 flow [2020-10-09 15:55:01,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-09 15:55:01,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-09 15:55:01,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 255 transitions. [2020-10-09 15:55:01,832 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9239130434782609 [2020-10-09 15:55:01,833 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 255 transitions. [2020-10-09 15:55:01,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 255 transitions. [2020-10-09 15:55:01,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:55:01,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 255 transitions. [2020-10-09 15:55:01,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-09 15:55:01,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-09 15:55:01,836 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-09 15:55:01,836 INFO L185 Difference]: Start difference. First operand has 120 places, 138 transitions, 297 flow. Second operand 2 states and 255 transitions. [2020-10-09 15:55:01,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 103 transitions, 227 flow [2020-10-09 15:55:01,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 103 transitions, 221 flow, removed 3 selfloop flow, removed 0 redundant places. [2020-10-09 15:55:01,841 INFO L241 Difference]: Finished difference. Result has 103 places, 103 transitions, 221 flow [2020-10-09 15:55:01,841 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=221, PETRI_PLACES=103, PETRI_TRANSITIONS=103} [2020-10-09 15:55:01,841 INFO L341 CegarLoopForPetriNet]: 120 programPoint places, -17 predicate places. [2020-10-09 15:55:01,842 INFO L481 AbstractCegarLoop]: Abstraction has has 103 places, 103 transitions, 221 flow [2020-10-09 15:55:01,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-09 15:55:01,842 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:01,842 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:02,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-09 15:55:02,057 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:02,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:02,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1288677243, now seen corresponding path program 1 times [2020-10-09 15:55:02,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:02,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146548689] [2020-10-09 15:55:02,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:55:02,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-09 15:55:02,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:55:02,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:02,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:55:02,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:02,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146548689] [2020-10-09 15:55:02,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:55:02,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 15:55:02,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816657899] [2020-10-09 15:55:02,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 15:55:02,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:55:02,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 15:55:02,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 15:55:02,214 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 138 [2020-10-09 15:55:02,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 103 transitions, 221 flow. Second operand 4 states. [2020-10-09 15:55:02,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:55:02,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 138 [2020-10-09 15:55:02,215 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:55:03,500 INFO L129 PetriNetUnfolder]: 3141/7457 cut-off events. [2020-10-09 15:55:03,500 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-09 15:55:03,562 INFO L80 FinitePrefix]: Finished finitePrefix Result has 11685 conditions, 7457 events. 3141/7457 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 64849 event pairs, 682 based on Foata normal form. 0/6428 useless extension candidates. Maximal degree in co-relation 11679. Up to 2451 conditions per place. [2020-10-09 15:55:03,634 INFO L132 encePairwiseOnDemand]: 122/138 looper letters, 21 selfloop transitions, 20 changer transitions 0/127 dead transitions. [2020-10-09 15:55:03,634 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 127 transitions, 351 flow [2020-10-09 15:55:03,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 15:55:03,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-09 15:55:03,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 449 transitions. [2020-10-09 15:55:03,637 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8134057971014492 [2020-10-09 15:55:03,637 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 449 transitions. [2020-10-09 15:55:03,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 449 transitions. [2020-10-09 15:55:03,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:55:03,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 449 transitions. [2020-10-09 15:55:03,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-09 15:55:03,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-09 15:55:03,641 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-09 15:55:03,641 INFO L185 Difference]: Start difference. First operand has 103 places, 103 transitions, 221 flow. Second operand 4 states and 449 transitions. [2020-10-09 15:55:03,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 127 transitions, 351 flow [2020-10-09 15:55:03,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 127 transitions, 351 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-09 15:55:03,645 INFO L241 Difference]: Finished difference. Result has 109 places, 123 transitions, 381 flow [2020-10-09 15:55:03,645 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=381, PETRI_PLACES=109, PETRI_TRANSITIONS=123} [2020-10-09 15:55:03,646 INFO L341 CegarLoopForPetriNet]: 120 programPoint places, -11 predicate places. [2020-10-09 15:55:03,646 INFO L481 AbstractCegarLoop]: Abstraction has has 109 places, 123 transitions, 381 flow [2020-10-09 15:55:03,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 15:55:03,646 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:03,646 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:03,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-09 15:55:03,867 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:03,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:03,867 INFO L82 PathProgramCache]: Analyzing trace with hash 688102043, now seen corresponding path program 1 times [2020-10-09 15:55:03,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:03,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892521714] [2020-10-09 15:55:03,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:55:03,926 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:55:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:55:03,941 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:55:03,960 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:55:03,960 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:55:04,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-09 15:55:04,178 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:55:04,178 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-09 15:55:04,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,196 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,196 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,196 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,196 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,196 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,197 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,197 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,197 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,197 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,197 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,198 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,198 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,198 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,198 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,199 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,199 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,199 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,199 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,199 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,200 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,247 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,250 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,250 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,250 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,250 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,250 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,250 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,251 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,251 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,251 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,251 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,251 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,251 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,252 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,252 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,252 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,252 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,252 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,252 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,253 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,253 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,253 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,253 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,253 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,255 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,255 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,256 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,256 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,256 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,256 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,256 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,256 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,257 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,257 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,257 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,257 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,257 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,265 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,265 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,265 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,273 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,276 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:04,282 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-09 15:55:04,283 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:55:04,283 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:55:04,283 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:55:04,283 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:55:04,283 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:55:04,283 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:55:04,283 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:55:04,283 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:55:04,287 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 144 places, 166 transitions, 364 flow [2020-10-09 15:55:04,320 INFO L129 PetriNetUnfolder]: 59/341 cut-off events. [2020-10-09 15:55:04,320 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-09 15:55:04,324 INFO L80 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 341 events. 59/341 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1423 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 277. Up to 15 conditions per place. [2020-10-09 15:55:04,324 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 166 transitions, 364 flow [2020-10-09 15:55:04,328 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 166 transitions, 364 flow [2020-10-09 15:55:04,334 INFO L129 PetriNetUnfolder]: 14/83 cut-off events. [2020-10-09 15:55:04,335 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:55:04,335 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:04,335 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:04,335 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:04,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:04,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1753375148, now seen corresponding path program 1 times [2020-10-09 15:55:04,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:04,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456222155] [2020-10-09 15:55:04,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:55:04,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-09 15:55:04,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:55:04,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:04,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:55:04,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:04,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456222155] [2020-10-09 15:55:04,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:55:04,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-09 15:55:04,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321090497] [2020-10-09 15:55:04,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-09 15:55:04,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:55:04,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-09 15:55:04,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 15:55:04,397 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 166 [2020-10-09 15:55:04,397 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 166 transitions, 364 flow. Second operand 2 states. [2020-10-09 15:55:04,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:55:04,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 166 [2020-10-09 15:55:04,397 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:55:04,429 INFO L129 PetriNetUnfolder]: 18/243 cut-off events. [2020-10-09 15:55:04,430 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-09 15:55:04,432 INFO L80 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 243 events. 18/243 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 891 event pairs, 0 based on Foata normal form. 32/252 useless extension candidates. Maximal degree in co-relation 261. Up to 10 conditions per place. [2020-10-09 15:55:04,435 INFO L132 encePairwiseOnDemand]: 140/166 looper letters, 0 selfloop transitions, 0 changer transitions 0/124 dead transitions. [2020-10-09 15:55:04,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 124 transitions, 280 flow [2020-10-09 15:55:04,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-09 15:55:04,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-09 15:55:04,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 306 transitions. [2020-10-09 15:55:04,437 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9216867469879518 [2020-10-09 15:55:04,437 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 306 transitions. [2020-10-09 15:55:04,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 306 transitions. [2020-10-09 15:55:04,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:55:04,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 306 transitions. [2020-10-09 15:55:04,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-09 15:55:04,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-09 15:55:04,440 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-09 15:55:04,440 INFO L185 Difference]: Start difference. First operand has 144 places, 166 transitions, 364 flow. Second operand 2 states and 306 transitions. [2020-10-09 15:55:04,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 124 transitions, 280 flow [2020-10-09 15:55:04,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 124 transitions, 268 flow, removed 6 selfloop flow, removed 0 redundant places. [2020-10-09 15:55:04,444 INFO L241 Difference]: Finished difference. Result has 124 places, 124 transitions, 268 flow [2020-10-09 15:55:04,445 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=268, PETRI_PLACES=124, PETRI_TRANSITIONS=124} [2020-10-09 15:55:04,445 INFO L341 CegarLoopForPetriNet]: 144 programPoint places, -20 predicate places. [2020-10-09 15:55:04,445 INFO L481 AbstractCegarLoop]: Abstraction has has 124 places, 124 transitions, 268 flow [2020-10-09 15:55:04,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-09 15:55:04,445 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:04,445 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:04,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-09 15:55:04,659 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:04,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:04,659 INFO L82 PathProgramCache]: Analyzing trace with hash -665269141, now seen corresponding path program 1 times [2020-10-09 15:55:04,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:04,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91735552] [2020-10-09 15:55:04,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:55:04,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-09 15:55:04,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:55:04,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:04,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:55:04,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:04,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91735552] [2020-10-09 15:55:04,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:55:04,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 15:55:04,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773849008] [2020-10-09 15:55:04,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 15:55:04,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:55:04,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 15:55:04,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 15:55:04,821 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 166 [2020-10-09 15:55:04,822 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 124 transitions, 268 flow. Second operand 4 states. [2020-10-09 15:55:04,822 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:55:04,822 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 166 [2020-10-09 15:55:04,822 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:55:11,796 INFO L129 PetriNetUnfolder]: 24368/46959 cut-off events. [2020-10-09 15:55:11,796 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-09 15:55:12,124 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77694 conditions, 46959 events. 24368/46959 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 1818. Compared 459509 event pairs, 5477 based on Foata normal form. 0/39730 useless extension candidates. Maximal degree in co-relation 77687. Up to 17668 conditions per place. [2020-10-09 15:55:12,904 INFO L132 encePairwiseOnDemand]: 146/166 looper letters, 26 selfloop transitions, 25 changer transitions 0/154 dead transitions. [2020-10-09 15:55:12,904 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 154 transitions, 430 flow [2020-10-09 15:55:12,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 15:55:12,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-09 15:55:12,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 537 transitions. [2020-10-09 15:55:12,907 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8087349397590361 [2020-10-09 15:55:12,907 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 537 transitions. [2020-10-09 15:55:12,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 537 transitions. [2020-10-09 15:55:12,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:55:12,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 537 transitions. [2020-10-09 15:55:12,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-09 15:55:12,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-09 15:55:12,911 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-09 15:55:12,911 INFO L185 Difference]: Start difference. First operand has 124 places, 124 transitions, 268 flow. Second operand 4 states and 537 transitions. [2020-10-09 15:55:12,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 154 transitions, 430 flow [2020-10-09 15:55:12,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 154 transitions, 430 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-09 15:55:12,915 INFO L241 Difference]: Finished difference. Result has 130 places, 149 transitions, 468 flow [2020-10-09 15:55:12,916 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=468, PETRI_PLACES=130, PETRI_TRANSITIONS=149} [2020-10-09 15:55:12,916 INFO L341 CegarLoopForPetriNet]: 144 programPoint places, -14 predicate places. [2020-10-09 15:55:12,916 INFO L481 AbstractCegarLoop]: Abstraction has has 130 places, 149 transitions, 468 flow [2020-10-09 15:55:12,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 15:55:12,916 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:12,917 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:13,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-09 15:55:13,118 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:13,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:13,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1760247535, now seen corresponding path program 1 times [2020-10-09 15:55:13,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:13,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140496854] [2020-10-09 15:55:13,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:55:13,191 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:55:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:55:13,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:55:13,237 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:55:13,237 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:55:13,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-10-09 15:55:13,449 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:55:13,449 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-09 15:55:13,464 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,464 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,464 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,465 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,465 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,465 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,465 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,465 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,466 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,466 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,466 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,466 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,466 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,466 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,466 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,467 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,467 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,467 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,467 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,467 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,467 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,469 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,469 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,469 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,469 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,469 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,469 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,470 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,473 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,474 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,475 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,475 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,475 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,475 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,475 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,475 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,478 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,478 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,479 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,479 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,479 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,479 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,479 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,479 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,479 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,479 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,481 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,481 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,481 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,481 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,481 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,481 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,481 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,482 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,482 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,483 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,483 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,483 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,486 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,486 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,491 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,491 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,494 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,494 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,496 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,497 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,497 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,497 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,498 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,498 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,498 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,498 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,499 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,500 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,500 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,500 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,500 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,500 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,501 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,501 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,501 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,501 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,501 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,501 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,501 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,502 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:13,503 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-09 15:55:13,503 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:55:13,503 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:55:13,504 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:55:13,504 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:55:13,504 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:55:13,504 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:55:13,504 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:55:13,504 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:55:13,506 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 168 places, 194 transitions, 433 flow [2020-10-09 15:55:13,548 INFO L129 PetriNetUnfolder]: 72/413 cut-off events. [2020-10-09 15:55:13,548 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-09 15:55:13,554 INFO L80 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 413 events. 72/413 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1775 event pairs, 0 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 356. Up to 18 conditions per place. [2020-10-09 15:55:13,554 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 194 transitions, 433 flow [2020-10-09 15:55:13,559 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 168 places, 194 transitions, 433 flow [2020-10-09 15:55:13,564 INFO L129 PetriNetUnfolder]: 13/79 cut-off events. [2020-10-09 15:55:13,564 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:55:13,565 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:13,565 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:13,565 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:13,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:13,565 INFO L82 PathProgramCache]: Analyzing trace with hash -616248170, now seen corresponding path program 1 times [2020-10-09 15:55:13,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:13,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227416420] [2020-10-09 15:55:13,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:55:13,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-09 15:55:13,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:55:13,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:13,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:55:13,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:13,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227416420] [2020-10-09 15:55:13,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:55:13,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-09 15:55:13,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121332040] [2020-10-09 15:55:13,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-09 15:55:13,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:55:13,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-09 15:55:13,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 15:55:13,634 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 194 [2020-10-09 15:55:13,634 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 194 transitions, 433 flow. Second operand 2 states. [2020-10-09 15:55:13,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:55:13,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 194 [2020-10-09 15:55:13,635 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:55:13,667 INFO L129 PetriNetUnfolder]: 22/294 cut-off events. [2020-10-09 15:55:13,667 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-09 15:55:13,670 INFO L80 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 294 events. 22/294 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1129 event pairs, 0 based on Foata normal form. 39/305 useless extension candidates. Maximal degree in co-relation 319. Up to 12 conditions per place. [2020-10-09 15:55:13,672 INFO L132 encePairwiseOnDemand]: 163/194 looper letters, 0 selfloop transitions, 0 changer transitions 0/145 dead transitions. [2020-10-09 15:55:13,672 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 145 transitions, 335 flow [2020-10-09 15:55:13,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-09 15:55:13,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-09 15:55:13,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 357 transitions. [2020-10-09 15:55:13,674 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9201030927835051 [2020-10-09 15:55:13,674 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 357 transitions. [2020-10-09 15:55:13,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 357 transitions. [2020-10-09 15:55:13,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:55:13,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 357 transitions. [2020-10-09 15:55:13,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-09 15:55:13,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-09 15:55:13,676 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-09 15:55:13,676 INFO L185 Difference]: Start difference. First operand has 168 places, 194 transitions, 433 flow. Second operand 2 states and 357 transitions. [2020-10-09 15:55:13,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 145 transitions, 335 flow [2020-10-09 15:55:13,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 145 transitions, 315 flow, removed 10 selfloop flow, removed 0 redundant places. [2020-10-09 15:55:13,680 INFO L241 Difference]: Finished difference. Result has 145 places, 145 transitions, 315 flow [2020-10-09 15:55:13,680 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=315, PETRI_PLACES=145, PETRI_TRANSITIONS=145} [2020-10-09 15:55:13,680 INFO L341 CegarLoopForPetriNet]: 168 programPoint places, -23 predicate places. [2020-10-09 15:55:13,680 INFO L481 AbstractCegarLoop]: Abstraction has has 145 places, 145 transitions, 315 flow [2020-10-09 15:55:13,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-09 15:55:13,681 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:13,681 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:13,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-10-09 15:55:13,894 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:13,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:13,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1759059959, now seen corresponding path program 1 times [2020-10-09 15:55:13,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:13,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733680852] [2020-10-09 15:55:13,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:55:13,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-09 15:55:13,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:55:13,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:13,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:55:13,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:13,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733680852] [2020-10-09 15:55:13,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:55:13,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 15:55:13,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233749289] [2020-10-09 15:55:13,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 15:55:13,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:55:13,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 15:55:13,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 15:55:14,073 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 194 [2020-10-09 15:55:14,073 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 145 transitions, 315 flow. Second operand 4 states. [2020-10-09 15:55:14,073 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:55:14,073 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 194 [2020-10-09 15:55:14,073 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:56:09,032 INFO L129 PetriNetUnfolder]: 166435/270805 cut-off events. [2020-10-09 15:56:09,032 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-09 15:56:22,762 INFO L80 FinitePrefix]: Finished finitePrefix Result has 473995 conditions, 270805 events. 166435/270805 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8839. Compared 2666290 event pairs, 41030 based on Foata normal form. 0/227898 useless extension candidates. Maximal degree in co-relation 473987. Up to 114597 conditions per place. [2020-10-09 15:56:25,396 INFO L132 encePairwiseOnDemand]: 170/194 looper letters, 31 selfloop transitions, 30 changer transitions 0/181 dead transitions. [2020-10-09 15:56:25,397 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 181 transitions, 509 flow [2020-10-09 15:56:25,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 15:56:25,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-09 15:56:25,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 625 transitions. [2020-10-09 15:56:25,403 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8054123711340206 [2020-10-09 15:56:25,403 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 625 transitions. [2020-10-09 15:56:25,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 625 transitions. [2020-10-09 15:56:25,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:56:25,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 625 transitions. [2020-10-09 15:56:25,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-09 15:56:25,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-09 15:56:25,411 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-09 15:56:25,411 INFO L185 Difference]: Start difference. First operand has 145 places, 145 transitions, 315 flow. Second operand 4 states and 625 transitions. [2020-10-09 15:56:25,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 181 transitions, 509 flow [2020-10-09 15:56:25,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 181 transitions, 509 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-09 15:56:25,416 INFO L241 Difference]: Finished difference. Result has 151 places, 175 transitions, 555 flow [2020-10-09 15:56:25,416 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=555, PETRI_PLACES=151, PETRI_TRANSITIONS=175} [2020-10-09 15:56:25,417 INFO L341 CegarLoopForPetriNet]: 168 programPoint places, -17 predicate places. [2020-10-09 15:56:25,417 INFO L481 AbstractCegarLoop]: Abstraction has has 151 places, 175 transitions, 555 flow [2020-10-09 15:56:25,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 15:56:25,417 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:56:25,417 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:56:25,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-09 15:56:25,618 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:56:25,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:56:25,619 INFO L82 PathProgramCache]: Analyzing trace with hash 121770550, now seen corresponding path program 1 times [2020-10-09 15:56:25,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:56:25,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379785938] [2020-10-09 15:56:25,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-09 15:56:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:56:25,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 34 conjunts are in the unsatisfiable core [2020-10-09 15:56:25,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:56:25,779 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-09 15:56:25,779 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 15:56:25,788 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 15:56:25,789 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 15:56:25,789 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2020-10-09 15:56:25,816 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-10-09 15:56:25,817 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 15:56:25,822 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 15:56:25,822 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 15:56:25,823 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:9 [2020-10-09 15:56:25,874 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-09 15:56:25,875 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 15:56:25,881 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 15:56:25,882 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 15:56:25,882 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2020-10-09 15:56:25,910 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-10-09 15:56:25,911 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 15:56:25,916 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 15:56:25,916 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 15:56:25,916 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:9 [2020-10-09 15:56:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:25,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:56:26,525 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:26,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379785938] [2020-10-09 15:56:26,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1330235454] [2020-10-09 15:56:26,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-09 15:56:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:56:26,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-09 15:56:26,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:56:26,777 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-09 15:56:26,777 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 15:56:26,782 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 15:56:26,783 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 15:56:26,783 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-10-09 15:56:26,811 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-10-09 15:56:26,812 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 15:56:26,815 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 15:56:26,816 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 15:56:26,816 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:7 [2020-10-09 15:56:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:26,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:56:27,020 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:27,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898731626] [2020-10-09 15:56:27,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-09 15:56:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:56:27,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 28 conjunts are in the unsatisfiable core [2020-10-09 15:56:27,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:56:27,102 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-09 15:56:27,103 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 15:56:27,107 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 15:56:27,107 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 15:56:27,107 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2020-10-09 15:56:27,140 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-10-09 15:56:27,140 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 15:56:27,144 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 15:56:27,145 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 15:56:27,145 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2020-10-09 15:56:27,152 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-09 15:56:27,152 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 15:56:27,157 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 15:56:27,157 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 15:56:27,157 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2020-10-09 15:56:27,190 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-10-09 15:56:27,190 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 15:56:27,194 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 15:56:27,195 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 15:56:27,195 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2020-10-09 15:56:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:27,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:56:27,432 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:27,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-10-09 15:56:27,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8, 7, 8, 8] total 29 [2020-10-09 15:56:27,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961326719] [2020-10-09 15:56:27,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-09 15:56:27,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:56:27,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-09 15:56:27,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2020-10-09 15:56:53,511 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 194 [2020-10-09 15:56:53,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 175 transitions, 555 flow. Second operand 29 states. [2020-10-09 15:56:53,515 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:56:53,515 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 194 [2020-10-09 15:56:53,515 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:56:56,104 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-10-09 15:57:00,409 WARN L193 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-10-09 15:57:00,606 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-10-09 15:57:07,029 WARN L193 SmtUtils]: Spent 6.18 s on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-10-09 15:57:27,469 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-10-09 15:57:35,951 WARN L193 SmtUtils]: Spent 8.17 s on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-10-09 15:57:44,187 WARN L193 SmtUtils]: Spent 8.18 s on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-10-09 15:57:44,943 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-09 15:57:45,485 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-10-09 15:57:54,362 WARN L193 SmtUtils]: Spent 6.16 s on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-10-09 15:58:01,215 WARN L193 SmtUtils]: Spent 4.50 s on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-10-09 15:58:04,918 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-09 15:58:06,309 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-10-09 16:03:41,850 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([911] L691-10-->L692: Formula: (= v_~c~0_1 1) InVars {} OutVars{~c~0=v_~c~0_1} AuxVars[] AssignedVars[~c~0][303], [34#L692true, thr1Thread1of5ForFork0InUse, 4#L692true, thr1Thread2of5ForFork0InUse, 101#L692true, thr1Thread3of5ForFork0InUse, 39#L700-6true, thr1Thread4of5ForFork0InUse, thr1Thread5of5ForFork0NotInUse, 171#true, 652#(< (div (+ (* (mod (select (select |#memory_int| |thr1Thread1of5ForFork0_~#l~0.base|) |thr1Thread1of5ForFork0_~#l~0.offset|) 4294967296) (- 1)) (mod ~t~0 4294967296) (- 1)) (- 4294967296)) 1), 365#(= ~c~0 1), 117#L693true, Black: 294#true, Black: 375#(= (mod ~c~0 4294967296) 1)]) [2020-10-09 16:03:41,850 INFO L383 tUnfolder$Statistics]: this new event has 85 ancestors and is cut-off event [2020-10-09 16:03:41,850 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2020-10-09 16:03:41,850 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2020-10-09 16:03:41,850 INFO L386 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2020-10-09 16:03:45,183 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([950] L693-1-->L693-2: Formula: (= v_~s~0_4 (+ |v_thr1Thread1of5ForFork0_#t~post3_2| 1)) InVars {thr1Thread1of5ForFork0_#t~post3=|v_thr1Thread1of5ForFork0_#t~post3_2|} OutVars{thr1Thread1of5ForFork0_#t~post3=|v_thr1Thread1of5ForFork0_#t~post3_2|, ~s~0=v_~s~0_4} AuxVars[] AssignedVars[~s~0][778], [thr1Thread1of5ForFork0InUse, 3#L693-2true, thr1Thread2of5ForFork0InUse, 294#true, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0NotInUse, thr1Thread5of5ForFork0NotInUse, 171#true, 652#(< (div (+ (* (mod (select (select |#memory_int| |thr1Thread1of5ForFork0_~#l~0.base|) |thr1Thread1of5ForFork0_~#l~0.offset|) 4294967296) (- 1)) (mod ~t~0 4294967296) (- 1)) (- 4294967296)) 1), 17#L691-9true, 122#L691-6true, Black: 375#(= (mod ~c~0 4294967296) 1), 28#L692true, Black: 365#(= ~c~0 1)]) [2020-10-09 16:03:45,183 INFO L383 tUnfolder$Statistics]: this new event has 85 ancestors and is cut-off event [2020-10-09 16:03:45,184 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2020-10-09 16:03:45,184 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2020-10-09 16:03:45,184 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2020-10-09 16:03:45,184 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([950] L693-1-->L693-2: Formula: (= v_~s~0_4 (+ |v_thr1Thread1of5ForFork0_#t~post3_2| 1)) InVars {thr1Thread1of5ForFork0_#t~post3=|v_thr1Thread1of5ForFork0_#t~post3_2|} OutVars{thr1Thread1of5ForFork0_#t~post3=|v_thr1Thread1of5ForFork0_#t~post3_2|, ~s~0=v_~s~0_4} AuxVars[] AssignedVars[~s~0][946], [thr1Thread1of5ForFork0InUse, 3#L693-2true, thr1Thread2of5ForFork0InUse, 294#true, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0NotInUse, thr1Thread5of5ForFork0NotInUse, 171#true, 652#(< (div (+ (* (mod (select (select |#memory_int| |thr1Thread1of5ForFork0_~#l~0.base|) |thr1Thread1of5ForFork0_~#l~0.offset|) 4294967296) (- 1)) (mod ~t~0 4294967296) (- 1)) (- 4294967296)) 1), 17#L691-9true, 119#L691-8true, Black: 375#(= (mod ~c~0 4294967296) 1), 28#L692true, Black: 365#(= ~c~0 1)]) [2020-10-09 16:03:45,184 INFO L383 tUnfolder$Statistics]: this new event has 85 ancestors and is cut-off event [2020-10-09 16:03:45,184 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2020-10-09 16:03:45,185 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2020-10-09 16:03:45,185 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2020-10-09 16:05:35,669 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([950] L693-1-->L693-2: Formula: (= v_~s~0_4 (+ |v_thr1Thread1of5ForFork0_#t~post3_2| 1)) InVars {thr1Thread1of5ForFork0_#t~post3=|v_thr1Thread1of5ForFork0_#t~post3_2|} OutVars{thr1Thread1of5ForFork0_#t~post3=|v_thr1Thread1of5ForFork0_#t~post3_2|, ~s~0=v_~s~0_4} AuxVars[] AssignedVars[~s~0][778], [32#L692-3true, thr1Thread1of5ForFork0InUse, 3#L693-2true, thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, 294#true, thr1Thread4of5ForFork0NotInUse, thr1Thread5of5ForFork0NotInUse, 171#true, 652#(< (div (+ (* (mod (select (select |#memory_int| |thr1Thread1of5ForFork0_~#l~0.base|) |thr1Thread1of5ForFork0_~#l~0.offset|) 4294967296) (- 1)) (mod ~t~0 4294967296) (- 1)) (- 4294967296)) 1), 17#L691-9true, 122#L691-6true, Black: 375#(= (mod ~c~0 4294967296) 1), Black: 365#(= ~c~0 1)]) [2020-10-09 16:05:35,669 INFO L383 tUnfolder$Statistics]: this new event has 86 ancestors and is cut-off event [2020-10-09 16:05:35,670 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,670 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,670 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,670 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([950] L693-1-->L693-2: Formula: (= v_~s~0_4 (+ |v_thr1Thread1of5ForFork0_#t~post3_2| 1)) InVars {thr1Thread1of5ForFork0_#t~post3=|v_thr1Thread1of5ForFork0_#t~post3_2|} OutVars{thr1Thread1of5ForFork0_#t~post3=|v_thr1Thread1of5ForFork0_#t~post3_2|, ~s~0=v_~s~0_4} AuxVars[] AssignedVars[~s~0][946], [32#L692-3true, thr1Thread1of5ForFork0InUse, 3#L693-2true, thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, 294#true, thr1Thread4of5ForFork0NotInUse, thr1Thread5of5ForFork0NotInUse, 171#true, 652#(< (div (+ (* (mod (select (select |#memory_int| |thr1Thread1of5ForFork0_~#l~0.base|) |thr1Thread1of5ForFork0_~#l~0.offset|) 4294967296) (- 1)) (mod ~t~0 4294967296) (- 1)) (- 4294967296)) 1), 17#L691-9true, 119#L691-8true, Black: 375#(= (mod ~c~0 4294967296) 1), Black: 365#(= ~c~0 1)]) [2020-10-09 16:05:35,670 INFO L383 tUnfolder$Statistics]: this new event has 86 ancestors and is cut-off event [2020-10-09 16:05:35,670 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,671 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,671 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,671 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([950] L693-1-->L693-2: Formula: (= v_~s~0_4 (+ |v_thr1Thread1of5ForFork0_#t~post3_2| 1)) InVars {thr1Thread1of5ForFork0_#t~post3=|v_thr1Thread1of5ForFork0_#t~post3_2|} OutVars{thr1Thread1of5ForFork0_#t~post3=|v_thr1Thread1of5ForFork0_#t~post3_2|, ~s~0=v_~s~0_4} AuxVars[] AssignedVars[~s~0][778], [thr1Thread1of5ForFork0InUse, 3#L693-2true, thr1Thread2of5ForFork0InUse, 294#true, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0NotInUse, thr1Thread5of5ForFork0NotInUse, 171#true, 652#(< (div (+ (* (mod (select (select |#memory_int| |thr1Thread1of5ForFork0_~#l~0.base|) |thr1Thread1of5ForFork0_~#l~0.offset|) 4294967296) (- 1)) (mod ~t~0 4294967296) (- 1)) (- 4294967296)) 1), 17#L691-9true, 115#L691-10true, Black: 375#(= (mod ~c~0 4294967296) 1), 28#L692true, Black: 365#(= ~c~0 1)]) [2020-10-09 16:05:35,671 INFO L383 tUnfolder$Statistics]: this new event has 86 ancestors and is cut-off event [2020-10-09 16:05:35,672 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,672 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,672 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,672 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([911] L691-10-->L692: Formula: (= v_~c~0_1 1) InVars {} OutVars{~c~0=v_~c~0_1} AuxVars[] AssignedVars[~c~0][96], [thr1Thread1of5ForFork0InUse, thr1Thread2of5ForFork0InUse, 4#L692true, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0NotInUse, thr1Thread5of5ForFork0NotInUse, 171#true, 652#(< (div (+ (* (mod (select (select |#memory_int| |thr1Thread1of5ForFork0_~#l~0.base|) |thr1Thread1of5ForFork0_~#l~0.offset|) 4294967296) (- 1)) (mod ~t~0 4294967296) (- 1)) (- 4294967296)) 1), 12#L693true, 365#(= ~c~0 1), 17#L691-9true, Black: 294#true, Black: 375#(= (mod ~c~0 4294967296) 1), 28#L692true]) [2020-10-09 16:05:35,672 INFO L383 tUnfolder$Statistics]: this new event has 85 ancestors and is cut-off event [2020-10-09 16:05:35,672 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2020-10-09 16:05:35,672 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2020-10-09 16:05:35,673 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2020-10-09 16:05:35,673 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([911] L691-10-->L692: Formula: (= v_~c~0_1 1) InVars {} OutVars{~c~0=v_~c~0_1} AuxVars[] AssignedVars[~c~0][96], [thr1Thread1of5ForFork0InUse, 4#L692true, thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0NotInUse, thr1Thread5of5ForFork0NotInUse, 171#true, 652#(< (div (+ (* (mod (select (select |#memory_int| |thr1Thread1of5ForFork0_~#l~0.base|) |thr1Thread1of5ForFork0_~#l~0.offset|) 4294967296) (- 1)) (mod ~t~0 4294967296) (- 1)) (- 4294967296)) 1), 12#L693true, 365#(= ~c~0 1), 17#L691-9true, Black: 294#true, Black: 375#(= (mod ~c~0 4294967296) 1), 30#L692-1true]) [2020-10-09 16:05:35,673 INFO L383 tUnfolder$Statistics]: this new event has 86 ancestors and is cut-off event [2020-10-09 16:05:35,673 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,673 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,673 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,673 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([911] L691-10-->L692: Formula: (= v_~c~0_1 1) InVars {} OutVars{~c~0=v_~c~0_1} AuxVars[] AssignedVars[~c~0][918], [32#L692-3true, thr1Thread1of5ForFork0InUse, 4#L692true, thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0NotInUse, thr1Thread5of5ForFork0NotInUse, 171#true, 652#(< (div (+ (* (mod (select (select |#memory_int| |thr1Thread1of5ForFork0_~#l~0.base|) |thr1Thread1of5ForFork0_~#l~0.offset|) 4294967296) (- 1)) (mod ~t~0 4294967296) (- 1)) (- 4294967296)) 1), 12#L693true, 365#(= ~c~0 1), 17#L691-9true, Black: 294#true, Black: 375#(= (mod ~c~0 4294967296) 1)]) [2020-10-09 16:05:35,673 INFO L383 tUnfolder$Statistics]: this new event has 86 ancestors and is cut-off event [2020-10-09 16:05:35,674 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,674 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2020-10-09 16:05:35,674 INFO L386 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown