/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/14_spin2003.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 11:31:30,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 11:31:30,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 11:31:31,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 11:31:31,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 11:31:31,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 11:31:31,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 11:31:31,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 11:31:31,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 11:31:31,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 11:31:31,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 11:31:31,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 11:31:31,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 11:31:31,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 11:31:31,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 11:31:31,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 11:31:31,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 11:31:31,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 11:31:31,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 11:31:31,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 11:31:31,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 11:31:31,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 11:31:31,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 11:31:31,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 11:31:31,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-09 11:31:31,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 11:31:31,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 11:31:31,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 11:31:31,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 11:31:31,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 11:31:31,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 11:31:31,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 11:31:31,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 11:31:31,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 11:31:31,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 11:31:31,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 11:31:31,091 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-09 11:31:31,138 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 11:31:31,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 11:31:31,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 11:31:31,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 11:31:31,140 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 11:31:31,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 11:31:31,141 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 11:31:31,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 11:31:31,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 11:31:31,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 11:31:31,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 11:31:31,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 11:31:31,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 11:31:31,143 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 11:31:31,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 11:31:31,143 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 11:31:31,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 11:31:31,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 11:31:31,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 11:31:31,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 11:31:31,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 11:31:31,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 11:31:31,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 11:31:31,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 11:31:31,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 11:31:31,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-09 11:31:31,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 11:31:31,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-09 11:31:31,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-09 11:31:31,146 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 11:31:31,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 11:31:31,447 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 11:31:31,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 11:31:31,451 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 11:31:31,452 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 11:31:31,453 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/14_spin2003.i [2020-10-09 11:31:31,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/add40fdc0/b94cc853eb2e4a508daf34a4eff49aec/FLAG15602b2ee [2020-10-09 11:31:32,072 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 11:31:32,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/14_spin2003.i [2020-10-09 11:31:32,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/add40fdc0/b94cc853eb2e4a508daf34a4eff49aec/FLAG15602b2ee [2020-10-09 11:31:32,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/add40fdc0/b94cc853eb2e4a508daf34a4eff49aec [2020-10-09 11:31:32,364 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 11:31:32,366 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 11:31:32,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 11:31:32,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 11:31:32,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 11:31:32,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 11:31:32" (1/1) ... [2020-10-09 11:31:32,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a3f2ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:31:32, skipping insertion in model container [2020-10-09 11:31:32,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 11:31:32" (1/1) ... [2020-10-09 11:31:32,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 11:31:32,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 11:31:32,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 11:31:32,914 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 11:31:32,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 11:31:33,038 INFO L208 MainTranslator]: Completed translation [2020-10-09 11:31:33,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:31:33 WrapperNode [2020-10-09 11:31:33,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 11:31:33,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 11:31:33,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 11:31:33,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 11:31:33,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:31:33" (1/1) ... [2020-10-09 11:31:33,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:31:33" (1/1) ... [2020-10-09 11:31:33,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 11:31:33,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 11:31:33,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 11:31:33,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 11:31:33,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:31:33" (1/1) ... [2020-10-09 11:31:33,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:31:33" (1/1) ... [2020-10-09 11:31:33,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:31:33" (1/1) ... [2020-10-09 11:31:33,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:31:33" (1/1) ... [2020-10-09 11:31:33,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:31:33" (1/1) ... [2020-10-09 11:31:33,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:31:33" (1/1) ... [2020-10-09 11:31:33,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:31:33" (1/1) ... [2020-10-09 11:31:33,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 11:31:33,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 11:31:33,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 11:31:33,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 11:31:33,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:31:33" (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 11:31:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-09 11:31:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-09 11:31:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 11:31:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 11:31:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 11:31:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 11:31:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 11:31:33,192 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 11:31:33,560 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 11:31:33,562 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-09 11:31:33,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 11:31:33 BoogieIcfgContainer [2020-10-09 11:31:33,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 11:31:33,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 11:31:33,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 11:31:33,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 11:31:33,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 11:31:32" (1/3) ... [2020-10-09 11:31:33,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc04b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 11:31:33, skipping insertion in model container [2020-10-09 11:31:33,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:31:33" (2/3) ... [2020-10-09 11:31:33,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc04b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 11:31:33, skipping insertion in model container [2020-10-09 11:31:33,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 11:31:33" (3/3) ... [2020-10-09 11:31:33,573 INFO L111 eAbstractionObserver]: Analyzing ICFG 14_spin2003.i [2020-10-09 11:31:33,587 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-09 11:31:33,588 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 11:31:33,595 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-09 11:31:33,596 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 11:31:33,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,626 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,627 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,627 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,627 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:33,645 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-09 11:31:33,666 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 11:31:33,666 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 11:31:33,666 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 11:31:33,667 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 11:31:33,667 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 11:31:33,667 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 11:31:33,667 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 11:31:33,667 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 11:31:33,679 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 11:31:33,682 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 30 transitions, 65 flow [2020-10-09 11:31:33,684 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 30 transitions, 65 flow [2020-10-09 11:31:33,686 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 31 places, 30 transitions, 65 flow [2020-10-09 11:31:33,716 INFO L129 PetriNetUnfolder]: 3/38 cut-off events. [2020-10-09 11:31:33,716 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 11:31:33,721 INFO L80 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 38 events. 3/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2020-10-09 11:31:33,722 INFO L117 LiptonReduction]: Number of co-enabled transitions 220 [2020-10-09 11:31:34,400 INFO L132 LiptonReduction]: Checked pairs total: 189 [2020-10-09 11:31:34,400 INFO L134 LiptonReduction]: Total number of compositions: 28 [2020-10-09 11:31:34,407 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 8 transitions, 21 flow [2020-10-09 11:31:34,417 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2020-10-09 11:31:34,420 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-09 11:31:34,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-09 11:31:34,427 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:31:34,428 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-09 11:31:34,428 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-09 11:31:34,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:31:34,436 INFO L82 PathProgramCache]: Analyzing trace with hash 5863591, now seen corresponding path program 1 times [2020-10-09 11:31:34,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:31:34,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594552006] [2020-10-09 11:31:34,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:31:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:31:34,623 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 11:31:34,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594552006] [2020-10-09 11:31:34,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:31:34,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-09 11:31:34,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318462356] [2020-10-09 11:31:34,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-09 11:31:34,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:31:34,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-09 11:31:34,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 11:31:34,656 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-10-09 11:31:34,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:31:34,669 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-10-09 11:31:34,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-09 11:31:34,671 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-10-09 11:31:34,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:31:34,681 INFO L225 Difference]: With dead ends: 11 [2020-10-09 11:31:34,681 INFO L226 Difference]: Without dead ends: 11 [2020-10-09 11:31:34,683 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 11:31:34,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-09 11:31:34,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-09 11:31:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-09 11:31:34,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-10-09 11:31:34,719 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-10-09 11:31:34,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:31:34,719 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-09 11:31:34,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-09 11:31:34,719 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-10-09 11:31:34,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-09 11:31:34,720 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:31:34,720 INFO L421 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-09 11:31:34,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-09 11:31:34,721 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-09 11:31:34,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:31:34,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1339900235, now seen corresponding path program 1 times [2020-10-09 11:31:34,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:31:34,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860780090] [2020-10-09 11:31:34,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:31:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 11:31:34,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 11:31:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 11:31:34,781 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 11:31:34,820 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-09 11:31:34,821 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 11:31:34,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-09 11:31:34,824 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 11:31:34,824 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-09 11:31:34,837 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,838 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,838 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,838 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,839 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,839 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,839 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,841 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,843 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,843 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:34,848 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-09 11:31:34,849 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 11:31:34,849 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 11:31:34,849 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 11:31:34,849 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 11:31:34,849 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 11:31:34,849 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 11:31:34,849 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 11:31:34,850 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 11:31:34,852 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 11:31:34,852 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 42 transitions, 96 flow [2020-10-09 11:31:34,852 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 42 transitions, 96 flow [2020-10-09 11:31:34,852 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 96 flow [2020-10-09 11:31:34,866 INFO L129 PetriNetUnfolder]: 5/59 cut-off events. [2020-10-09 11:31:34,866 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-09 11:31:34,868 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 5/59 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 112 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 6 conditions per place. [2020-10-09 11:31:34,870 INFO L117 LiptonReduction]: Number of co-enabled transitions 704 [2020-10-09 11:31:35,495 INFO L132 LiptonReduction]: Checked pairs total: 2548 [2020-10-09 11:31:35,496 INFO L134 LiptonReduction]: Total number of compositions: 30 [2020-10-09 11:31:35,496 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 20 transitions, 52 flow [2020-10-09 11:31:35,512 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 277 states. [2020-10-09 11:31:35,513 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states. [2020-10-09 11:31:35,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-09 11:31:35,514 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:31:35,514 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:31:35,514 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:31:35,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:31:35,515 INFO L82 PathProgramCache]: Analyzing trace with hash -801192401, now seen corresponding path program 1 times [2020-10-09 11:31:35,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:31:35,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973518702] [2020-10-09 11:31:35,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:31:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:31:35,564 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 11:31:35,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973518702] [2020-10-09 11:31:35,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:31:35,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 11:31:35,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265613566] [2020-10-09 11:31:35,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:31:35,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:31:35,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:31:35,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:31:35,567 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 3 states. [2020-10-09 11:31:35,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:31:35,610 INFO L93 Difference]: Finished difference Result 221 states and 498 transitions. [2020-10-09 11:31:35,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:31:35,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-09 11:31:35,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:31:35,618 INFO L225 Difference]: With dead ends: 221 [2020-10-09 11:31:35,618 INFO L226 Difference]: Without dead ends: 221 [2020-10-09 11:31:35,619 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:31:35,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-10-09 11:31:35,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 205. [2020-10-09 11:31:35,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-09 11:31:35,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 462 transitions. [2020-10-09 11:31:35,664 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 462 transitions. Word has length 7 [2020-10-09 11:31:35,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:31:35,664 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 462 transitions. [2020-10-09 11:31:35,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:31:35,665 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 462 transitions. [2020-10-09 11:31:35,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-09 11:31:35,666 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:31:35,666 INFO L421 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-09 11:31:35,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-09 11:31:35,666 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:31:35,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:31:35,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1851846727, now seen corresponding path program 1 times [2020-10-09 11:31:35,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:31:35,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372283665] [2020-10-09 11:31:35,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:31:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 11:31:35,693 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 11:31:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 11:31:35,711 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 11:31:35,715 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-09 11:31:35,716 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 11:31:35,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-09 11:31:35,717 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 11:31:35,718 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-09 11:31:35,725 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,726 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,726 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,726 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,726 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,726 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,727 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,733 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,733 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,736 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,736 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,736 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,736 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,737 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,737 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,738 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,739 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,739 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,739 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,739 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,740 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:35,741 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-09 11:31:35,741 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 11:31:35,742 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 11:31:35,742 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 11:31:35,742 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 11:31:35,742 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 11:31:35,742 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 11:31:35,742 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 11:31:35,743 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 11:31:35,744 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 11:31:35,745 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 54 transitions, 129 flow [2020-10-09 11:31:35,745 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 54 transitions, 129 flow [2020-10-09 11:31:35,745 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 57 places, 54 transitions, 129 flow [2020-10-09 11:31:35,772 INFO L129 PetriNetUnfolder]: 7/80 cut-off events. [2020-10-09 11:31:35,772 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-09 11:31:35,778 INFO L80 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 80 events. 7/80 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 179 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 63. Up to 8 conditions per place. [2020-10-09 11:31:35,782 INFO L117 LiptonReduction]: Number of co-enabled transitions 1452 [2020-10-09 11:31:36,654 INFO L132 LiptonReduction]: Checked pairs total: 6263 [2020-10-09 11:31:36,654 INFO L134 LiptonReduction]: Total number of compositions: 40 [2020-10-09 11:31:36,655 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 28 transitions, 77 flow [2020-10-09 11:31:36,753 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1943 states. [2020-10-09 11:31:36,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1943 states. [2020-10-09 11:31:36,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-09 11:31:36,754 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:31:36,754 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:31:36,755 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:31:36,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:31:36,755 INFO L82 PathProgramCache]: Analyzing trace with hash 49569068, now seen corresponding path program 1 times [2020-10-09 11:31:36,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:31:36,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524380609] [2020-10-09 11:31:36,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:31:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:31:36,784 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 11:31:36,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524380609] [2020-10-09 11:31:36,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:31:36,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 11:31:36,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370120301] [2020-10-09 11:31:36,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:31:36,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:31:36,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:31:36,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:31:36,786 INFO L87 Difference]: Start difference. First operand 1943 states. Second operand 3 states. [2020-10-09 11:31:36,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:31:36,884 INFO L93 Difference]: Finished difference Result 1827 states and 5490 transitions. [2020-10-09 11:31:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:31:36,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-09 11:31:36,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:31:36,916 INFO L225 Difference]: With dead ends: 1827 [2020-10-09 11:31:36,916 INFO L226 Difference]: Without dead ends: 1827 [2020-10-09 11:31:36,917 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:31:36,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1827 states. [2020-10-09 11:31:37,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1827 to 1599. [2020-10-09 11:31:37,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1599 states. [2020-10-09 11:31:37,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1599 states to 1599 states and 4830 transitions. [2020-10-09 11:31:37,062 INFO L78 Accepts]: Start accepts. Automaton has 1599 states and 4830 transitions. Word has length 7 [2020-10-09 11:31:37,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:31:37,062 INFO L481 AbstractCegarLoop]: Abstraction has 1599 states and 4830 transitions. [2020-10-09 11:31:37,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:31:37,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1599 states and 4830 transitions. [2020-10-09 11:31:37,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 11:31:37,066 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:31:37,066 INFO L421 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:31:37,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-09 11:31:37,067 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:31:37,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:31:37,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1931196942, now seen corresponding path program 1 times [2020-10-09 11:31:37,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:31:37,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739992968] [2020-10-09 11:31:37,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:31:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:31:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 11:31:37,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739992968] [2020-10-09 11:31:37,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:31:37,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 11:31:37,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076330958] [2020-10-09 11:31:37,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:31:37,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:31:37,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:31:37,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:31:37,128 INFO L87 Difference]: Start difference. First operand 1599 states and 4830 transitions. Second operand 3 states. [2020-10-09 11:31:37,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:31:37,144 INFO L93 Difference]: Finished difference Result 305 states and 564 transitions. [2020-10-09 11:31:37,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:31:37,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-09 11:31:37,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:31:37,147 INFO L225 Difference]: With dead ends: 305 [2020-10-09 11:31:37,147 INFO L226 Difference]: Without dead ends: 305 [2020-10-09 11:31:37,147 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:31:37,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-10-09 11:31:37,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2020-10-09 11:31:37,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-10-09 11:31:37,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 564 transitions. [2020-10-09 11:31:37,156 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 564 transitions. Word has length 12 [2020-10-09 11:31:37,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:31:37,157 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 564 transitions. [2020-10-09 11:31:37,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:31:37,157 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 564 transitions. [2020-10-09 11:31:37,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 11:31:37,158 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:31:37,158 INFO L421 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-09 11:31:37,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-09 11:31:37,158 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:31:37,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:31:37,159 INFO L82 PathProgramCache]: Analyzing trace with hash 989460647, now seen corresponding path program 1 times [2020-10-09 11:31:37,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:31:37,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915874371] [2020-10-09 11:31:37,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:31:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 11:31:37,172 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 11:31:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 11:31:37,193 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 11:31:37,201 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-09 11:31:37,201 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 11:31:37,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-09 11:31:37,202 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 11:31:37,202 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-09 11:31:37,215 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,215 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,216 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,216 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,216 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,217 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,217 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,217 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,217 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,217 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,218 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,218 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,218 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,218 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,218 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,220 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,220 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,222 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,222 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,222 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,223 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,223 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,223 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,230 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:37,231 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-09 11:31:37,231 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 11:31:37,231 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 11:31:37,231 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 11:31:37,231 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 11:31:37,231 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 11:31:37,232 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 11:31:37,232 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 11:31:37,232 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 11:31:37,234 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 11:31:37,234 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 66 transitions, 164 flow [2020-10-09 11:31:37,234 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 66 transitions, 164 flow [2020-10-09 11:31:37,234 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 70 places, 66 transitions, 164 flow [2020-10-09 11:31:37,251 INFO L129 PetriNetUnfolder]: 9/101 cut-off events. [2020-10-09 11:31:37,251 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-09 11:31:37,253 INFO L80 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 101 events. 9/101 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 250 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 89. Up to 10 conditions per place. [2020-10-09 11:31:37,256 INFO L117 LiptonReduction]: Number of co-enabled transitions 2464 [2020-10-09 11:31:38,542 INFO L132 LiptonReduction]: Checked pairs total: 12362 [2020-10-09 11:31:38,543 INFO L134 LiptonReduction]: Total number of compositions: 54 [2020-10-09 11:31:38,543 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 37 transitions, 106 flow [2020-10-09 11:31:40,387 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13605 states. [2020-10-09 11:31:40,388 INFO L276 IsEmpty]: Start isEmpty. Operand 13605 states. [2020-10-09 11:31:40,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-09 11:31:40,388 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:31:40,389 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:31:40,389 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-09 11:31:40,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:31:40,389 INFO L82 PathProgramCache]: Analyzing trace with hash 116776483, now seen corresponding path program 1 times [2020-10-09 11:31:40,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:31:40,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442271839] [2020-10-09 11:31:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:31:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:31:40,410 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 11:31:40,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442271839] [2020-10-09 11:31:40,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:31:40,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 11:31:40,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112606317] [2020-10-09 11:31:40,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:31:40,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:31:40,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:31:40,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:31:40,413 INFO L87 Difference]: Start difference. First operand 13605 states. Second operand 3 states. [2020-10-09 11:31:40,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:31:40,696 INFO L93 Difference]: Finished difference Result 14477 states and 54603 transitions. [2020-10-09 11:31:40,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:31:40,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-09 11:31:40,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:31:40,892 INFO L225 Difference]: With dead ends: 14477 [2020-10-09 11:31:40,893 INFO L226 Difference]: Without dead ends: 14477 [2020-10-09 11:31:40,893 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:31:41,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14477 states. [2020-10-09 11:31:41,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14477 to 12319. [2020-10-09 11:31:41,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12319 states. [2020-10-09 11:31:41,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12319 states to 12319 states and 46956 transitions. [2020-10-09 11:31:41,843 INFO L78 Accepts]: Start accepts. Automaton has 12319 states and 46956 transitions. Word has length 7 [2020-10-09 11:31:41,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:31:41,844 INFO L481 AbstractCegarLoop]: Abstraction has 12319 states and 46956 transitions. [2020-10-09 11:31:41,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:31:41,844 INFO L276 IsEmpty]: Start isEmpty. Operand 12319 states and 46956 transitions. [2020-10-09 11:31:41,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 11:31:41,845 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:31:41,845 INFO L421 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:31:41,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-09 11:31:41,846 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-09 11:31:41,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:31:41,846 INFO L82 PathProgramCache]: Analyzing trace with hash 644210210, now seen corresponding path program 1 times [2020-10-09 11:31:41,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:31:41,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428516221] [2020-10-09 11:31:41,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:31:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:31:41,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 11:31:41,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428516221] [2020-10-09 11:31:41,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:31:41,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 11:31:41,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184718248] [2020-10-09 11:31:41,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:31:41,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:31:41,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:31:41,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:31:41,872 INFO L87 Difference]: Start difference. First operand 12319 states and 46956 transitions. Second operand 3 states. [2020-10-09 11:31:41,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:31:41,905 INFO L93 Difference]: Finished difference Result 825 states and 1576 transitions. [2020-10-09 11:31:41,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:31:41,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-09 11:31:41,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:31:41,908 INFO L225 Difference]: With dead ends: 825 [2020-10-09 11:31:41,908 INFO L226 Difference]: Without dead ends: 825 [2020-10-09 11:31:41,909 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:31:41,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-10-09 11:31:41,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2020-10-09 11:31:41,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2020-10-09 11:31:41,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1576 transitions. [2020-10-09 11:31:41,931 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1576 transitions. Word has length 12 [2020-10-09 11:31:41,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:31:41,931 INFO L481 AbstractCegarLoop]: Abstraction has 825 states and 1576 transitions. [2020-10-09 11:31:41,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:31:41,931 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1576 transitions. [2020-10-09 11:31:41,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-09 11:31:41,932 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:31:41,933 INFO L421 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-10-09 11:31:41,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-09 11:31:41,933 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-09 11:31:41,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:31:41,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1186692202, now seen corresponding path program 1 times [2020-10-09 11:31:41,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:31:41,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126119387] [2020-10-09 11:31:41,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:31:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 11:31:41,944 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 11:31:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 11:31:41,952 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 11:31:41,957 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-09 11:31:41,957 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 11:31:41,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-09 11:31:41,958 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 11:31:41,958 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-09 11:31:41,965 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,966 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,966 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,966 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,966 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,966 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,967 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,967 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,967 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,967 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,967 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,968 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,968 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,968 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,968 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,968 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,968 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,969 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,969 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,969 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,969 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,969 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,970 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,970 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,970 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,970 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,970 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,971 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,971 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,971 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,971 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,971 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,971 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,972 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,972 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,972 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,972 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,972 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,972 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,973 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,973 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,974 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,974 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,974 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,974 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,974 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,975 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,975 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,975 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,976 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,978 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,978 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,979 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,980 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,981 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,981 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,984 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,984 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,985 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,985 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:31:41,986 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-09 11:31:41,987 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 11:31:41,987 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 11:31:41,987 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 11:31:41,987 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 11:31:41,987 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 11:31:41,987 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 11:31:41,987 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 11:31:41,988 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 11:31:41,989 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 11:31:41,989 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 78 transitions, 201 flow [2020-10-09 11:31:41,989 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 78 transitions, 201 flow [2020-10-09 11:31:41,989 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 201 flow [2020-10-09 11:31:42,006 INFO L129 PetriNetUnfolder]: 11/122 cut-off events. [2020-10-09 11:31:42,006 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-09 11:31:42,008 INFO L80 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 122 events. 11/122 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 309 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 117. Up to 12 conditions per place. [2020-10-09 11:31:42,012 INFO L117 LiptonReduction]: Number of co-enabled transitions 3740 [2020-10-09 11:31:43,498 INFO L132 LiptonReduction]: Checked pairs total: 17308 [2020-10-09 11:31:43,498 INFO L134 LiptonReduction]: Total number of compositions: 52 [2020-10-09 11:31:43,498 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 42 transitions, 129 flow [2020-10-09 11:32:14,852 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 95239 states. [2020-10-09 11:32:14,852 INFO L276 IsEmpty]: Start isEmpty. Operand 95239 states. [2020-10-09 11:32:14,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-09 11:32:14,853 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:32:14,853 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:32:14,853 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:32:14,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:32:14,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1150412645, now seen corresponding path program 1 times [2020-10-09 11:32:14,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:32:14,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330085502] [2020-10-09 11:32:14,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:32:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:32:14,879 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 11:32:14,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330085502] [2020-10-09 11:32:14,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:32:14,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 11:32:14,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466804154] [2020-10-09 11:32:14,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:32:14,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:32:14,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:32:14,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:32:14,881 INFO L87 Difference]: Start difference. First operand 95239 states. Second operand 3 states. [2020-10-09 11:32:15,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:32:15,552 INFO L93 Difference]: Finished difference Result 110595 states and 502973 transitions. [2020-10-09 11:32:15,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:32:15,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-09 11:32:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:32:16,204 INFO L225 Difference]: With dead ends: 110595 [2020-10-09 11:32:16,205 INFO L226 Difference]: Without dead ends: 110595 [2020-10-09 11:32:16,205 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:32:21,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110595 states. [2020-10-09 11:32:23,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110595 to 93453. [2020-10-09 11:32:23,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93453 states. [2020-10-09 11:32:24,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93453 states to 93453 states and 431060 transitions. [2020-10-09 11:32:24,241 INFO L78 Accepts]: Start accepts. Automaton has 93453 states and 431060 transitions. Word has length 7 [2020-10-09 11:32:24,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:32:24,241 INFO L481 AbstractCegarLoop]: Abstraction has 93453 states and 431060 transitions. [2020-10-09 11:32:24,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:32:24,242 INFO L276 IsEmpty]: Start isEmpty. Operand 93453 states and 431060 transitions. [2020-10-09 11:32:24,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 11:32:24,242 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:32:24,242 INFO L421 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:32:24,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-09 11:32:24,242 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:32:24,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:32:24,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1181639961, now seen corresponding path program 1 times [2020-10-09 11:32:24,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:32:24,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138500460] [2020-10-09 11:32:24,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:32:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:32:24,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 11:32:24,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138500460] [2020-10-09 11:32:24,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:32:24,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 11:32:24,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031647901] [2020-10-09 11:32:24,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:32:24,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:32:24,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:32:24,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:32:24,264 INFO L87 Difference]: Start difference. First operand 93453 states and 431060 transitions. Second operand 3 states. [2020-10-09 11:32:24,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:32:24,289 INFO L93 Difference]: Finished difference Result 2089 states and 4072 transitions. [2020-10-09 11:32:24,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:32:24,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-09 11:32:24,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:32:24,293 INFO L225 Difference]: With dead ends: 2089 [2020-10-09 11:32:24,294 INFO L226 Difference]: Without dead ends: 2089 [2020-10-09 11:32:24,294 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:32:24,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-10-09 11:32:24,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2020-10-09 11:32:24,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-10-09 11:32:24,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 4072 transitions. [2020-10-09 11:32:24,339 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 4072 transitions. Word has length 12 [2020-10-09 11:32:24,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:32:24,340 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 4072 transitions. [2020-10-09 11:32:24,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:32:24,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 4072 transitions. [2020-10-09 11:32:24,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-09 11:32:24,341 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:32:24,341 INFO L421 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:32:24,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-09 11:32:24,342 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:32:24,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:32:24,342 INFO L82 PathProgramCache]: Analyzing trace with hash 165127587, now seen corresponding path program 1 times [2020-10-09 11:32:24,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:32:24,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658828025] [2020-10-09 11:32:24,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:32:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 11:32:24,351 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 11:32:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 11:32:24,358 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 11:32:24,363 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-09 11:32:24,363 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 11:32:24,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-09 11:32:24,364 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 11:32:24,364 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-09 11:32:24,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,375 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,375 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,375 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,375 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,376 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,376 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,376 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,378 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,378 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,378 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,378 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,379 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,379 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,379 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,382 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,382 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,382 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,383 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:24,392 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-09 11:32:24,392 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 11:32:24,392 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 11:32:24,392 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 11:32:24,392 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 11:32:24,393 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 11:32:24,393 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 11:32:24,393 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 11:32:24,393 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 11:32:24,394 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 11:32:24,394 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 90 transitions, 240 flow [2020-10-09 11:32:24,394 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 90 transitions, 240 flow [2020-10-09 11:32:24,394 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 96 places, 90 transitions, 240 flow [2020-10-09 11:32:24,412 INFO L129 PetriNetUnfolder]: 13/143 cut-off events. [2020-10-09 11:32:24,412 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-09 11:32:24,414 INFO L80 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 143 events. 13/143 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 397 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 146. Up to 14 conditions per place. [2020-10-09 11:32:24,421 INFO L117 LiptonReduction]: Number of co-enabled transitions 5280 [2020-10-09 11:32:26,050 INFO L132 LiptonReduction]: Checked pairs total: 24174 [2020-10-09 11:32:26,050 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-09 11:32:26,050 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 49 transitions, 158 flow Received shutdown request... [2020-10-09 11:45:38,402 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-09 11:45:38,405 WARN L235 ceAbstractionStarter]: Timeout [2020-10-09 11:45:38,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 11:45:38 BasicIcfg [2020-10-09 11:45:38,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 11:45:38,413 INFO L168 Benchmark]: Toolchain (without parser) took 846041.56 ms. Allocated memory was 253.2 MB in the beginning and 6.0 GB in the end (delta: 5.8 GB). Free memory was 207.8 MB in the beginning and 3.2 GB in the end (delta: -3.0 GB). Peak memory consumption was 5.7 GB. Max. memory is 14.2 GB. [2020-10-09 11:45:38,414 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 11:45:38,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.03 ms. Allocated memory was 253.2 MB in the beginning and 319.3 MB in the end (delta: 66.1 MB). Free memory was 207.8 MB in the beginning and 274.6 MB in the end (delta: -66.9 MB). Peak memory consumption was 30.0 MB. Max. memory is 14.2 GB. [2020-10-09 11:45:38,415 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.51 ms. Allocated memory is still 319.3 MB. Free memory is still 274.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 11:45:38,424 INFO L168 Benchmark]: Boogie Preprocessor took 24.88 ms. Allocated memory is still 319.3 MB. Free memory was 274.6 MB in the beginning and 272.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 11:45:38,424 INFO L168 Benchmark]: RCFGBuilder took 452.73 ms. Allocated memory is still 319.3 MB. Free memory was 272.1 MB in the beginning and 247.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-09 11:45:38,427 INFO L168 Benchmark]: TraceAbstraction took 844839.42 ms. Allocated memory was 319.3 MB in the beginning and 6.0 GB in the end (delta: 5.7 GB). Free memory was 247.7 MB in the beginning and 3.2 GB in the end (delta: -2.9 GB). Peak memory consumption was 5.7 GB. Max. memory is 14.2 GB. [2020-10-09 11:45:38,432 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 670.03 ms. Allocated memory was 253.2 MB in the beginning and 319.3 MB in the end (delta: 66.1 MB). Free memory was 207.8 MB in the beginning and 274.6 MB in the end (delta: -66.9 MB). Peak memory consumption was 30.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.51 ms. Allocated memory is still 319.3 MB. Free memory is still 274.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 24.88 ms. Allocated memory is still 319.3 MB. Free memory was 274.6 MB in the beginning and 272.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 452.73 ms. Allocated memory is still 319.3 MB. Free memory was 272.1 MB in the beginning and 247.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 844839.42 ms. Allocated memory was 319.3 MB in the beginning and 6.0 GB in the end (delta: 5.7 GB). Free memory was 247.7 MB in the beginning and 3.2 GB in the end (delta: -2.9 GB). Peak memory consumption was 5.7 GB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 140 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 2 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.7s, 31 PlacesBefore, 11 PlacesAfterwards, 30 TransitionsBefore, 8 TransitionsAfterwards, 220 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 28 TotalNumberOfCompositions, 189 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 435 VarBasedMoverChecksPositive, 50 VarBasedMoverChecksNegative, 27 SemBasedMoverChecksPositive, 23 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 78 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.6s, 44 PlacesBefore, 24 PlacesAfterwards, 42 TransitionsBefore, 20 TransitionsAfterwards, 704 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 30 TotalNumberOfCompositions, 2548 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1033 VarBasedMoverChecksPositive, 154 VarBasedMoverChecksNegative, 109 SemBasedMoverChecksPositive, 45 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 258 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.9s, 57 PlacesBefore, 33 PlacesAfterwards, 54 TransitionsBefore, 28 TransitionsAfterwards, 1452 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 40 TotalNumberOfCompositions, 6263 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1569 VarBasedMoverChecksPositive, 336 VarBasedMoverChecksNegative, 283 SemBasedMoverChecksPositive, 53 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 248 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 70 PlacesBefore, 42 PlacesAfterwards, 66 TransitionsBefore, 37 TransitionsAfterwards, 2464 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 12362 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2072 VarBasedMoverChecksPositive, 257 VarBasedMoverChecksNegative, 184 SemBasedMoverChecksPositive, 73 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 343 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 83 PlacesBefore, 51 PlacesAfterwards, 78 TransitionsBefore, 42 TransitionsAfterwards, 3740 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 4 ChoiceCompositions, 52 TotalNumberOfCompositions, 17308 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3151 VarBasedMoverChecksPositive, 485 VarBasedMoverChecksNegative, 398 SemBasedMoverChecksPositive, 87 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 676 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 96 PlacesBefore, 60 PlacesAfterwards, 90 TransitionsBefore, 49 TransitionsAfterwards, 5280 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 5 ChoiceCompositions, 58 TotalNumberOfCompositions, 24174 MoverChecksTotal - TimeoutResultAtElement [Line: 692]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 692). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 60 places, 49 transitions, 158 flow. Already constructed 511368 states. Currently 52664 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 1 error locations. Started 6 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 844.6s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 832.4s, HoareTripleCheckerStatistics: 210 SDtfs, 109 SDslu, 71 SDs, 0 SdLazy, 83 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95239occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 19544 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 916 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown