/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-atomic/gcd-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 11:04:46,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 11:04:46,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 11:04:46,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 11:04:46,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 11:04:46,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 11:04:46,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 11:04:46,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 11:04:46,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 11:04:46,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 11:04:46,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 11:04:46,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 11:04:46,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 11:04:46,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 11:04:46,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 11:04:46,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 11:04:46,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 11:04:46,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 11:04:46,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 11:04:46,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 11:04:46,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 11:04:46,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 11:04:46,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 11:04:46,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 11:04:46,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 11:04:46,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 11:04:46,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 11:04:46,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 11:04:46,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 11:04:46,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 11:04:46,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 11:04:46,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 11:04:46,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 11:04:46,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 11:04:46,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 11:04:46,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 11:04:46,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 11:04:46,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 11:04:46,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 11:04:46,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 11:04:46,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 11:04:46,555 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 11:04:46,597 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 11:04:46,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 11:04:46,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 11:04:46,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 11:04:46,601 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 11:04:46,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 11:04:46,602 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 11:04:46,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 11:04:46,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 11:04:46,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 11:04:46,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 11:04:46,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 11:04:46,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 11:04:46,603 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 11:04:46,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 11:04:46,603 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 11:04:46,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 11:04:46,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 11:04:46,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 11:04:46,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 11:04:46,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 11:04:46,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 11:04:46,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 11:04:46,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 11:04:46,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 11:04:46,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-09 11:04:46,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 11:04:46,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-09 11:04:46,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-09 11:04:46,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 11:04:46,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 11:04:46,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 11:04:46,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 11:04:46,951 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 11:04:46,954 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 11:04:46,955 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i [2020-10-09 11:04:47,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237d53bb5/30b1b3e7a7114d758d4ea4581b3eead6/FLAGa3a950416 [2020-10-09 11:04:47,536 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 11:04:47,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i [2020-10-09 11:04:47,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237d53bb5/30b1b3e7a7114d758d4ea4581b3eead6/FLAGa3a950416 [2020-10-09 11:04:47,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237d53bb5/30b1b3e7a7114d758d4ea4581b3eead6 [2020-10-09 11:04:47,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 11:04:47,801 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 11:04:47,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 11:04:47,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 11:04:47,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 11:04:47,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 11:04:47" (1/1) ... [2020-10-09 11:04:47,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388f743b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:04:47, skipping insertion in model container [2020-10-09 11:04:47,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 11:04:47" (1/1) ... [2020-10-09 11:04:47,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 11:04:47,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 11:04:48,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 11:04:48,483 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 11:04:48,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 11:04:48,605 INFO L208 MainTranslator]: Completed translation [2020-10-09 11:04:48,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:04:48 WrapperNode [2020-10-09 11:04:48,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 11:04:48,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 11:04:48,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 11:04:48,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 11:04:48,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:04:48" (1/1) ... [2020-10-09 11:04:48,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:04:48" (1/1) ... [2020-10-09 11:04:48,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 11:04:48,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 11:04:48,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 11:04:48,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 11:04:48,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:04:48" (1/1) ... [2020-10-09 11:04:48,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:04:48" (1/1) ... [2020-10-09 11:04:48,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:04:48" (1/1) ... [2020-10-09 11:04:48,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:04:48" (1/1) ... [2020-10-09 11:04:48,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:04:48" (1/1) ... [2020-10-09 11:04:48,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:04:48" (1/1) ... [2020-10-09 11:04:48,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:04:48" (1/1) ... [2020-10-09 11:04:48,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 11:04:48,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 11:04:48,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 11:04:48,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 11:04:48,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:04:48" (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 11:04:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-09 11:04:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 11:04:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 11:04:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 11:04:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2020-10-09 11:04:48,765 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2020-10-09 11:04:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2020-10-09 11:04:48,765 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2020-10-09 11:04:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 11:04:48,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 11:04:48,767 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 11:04:49,311 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 11:04:49,311 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-09 11:04:49,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 11:04:49 BoogieIcfgContainer [2020-10-09 11:04:49,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 11:04:49,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 11:04:49,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 11:04:49,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 11:04:49,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 11:04:47" (1/3) ... [2020-10-09 11:04:49,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dddd34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 11:04:49, skipping insertion in model container [2020-10-09 11:04:49,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:04:48" (2/3) ... [2020-10-09 11:04:49,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dddd34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 11:04:49, skipping insertion in model container [2020-10-09 11:04:49,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 11:04:49" (3/3) ... [2020-10-09 11:04:49,323 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd-2.i [2020-10-09 11:04:49,335 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-09 11:04:49,335 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 11:04:49,341 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-09 11:04:49,342 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 11:04:49,368 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,368 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,369 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,369 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,370 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,370 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,370 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,371 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,371 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,371 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,371 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,372 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,375 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,376 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,376 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,376 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,381 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,381 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,381 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,382 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:04:49,403 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-09 11:04:49,421 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 11:04:49,421 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 11:04:49,422 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 11:04:49,422 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 11:04:49,422 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 11:04:49,422 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 11:04:49,422 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 11:04:49,422 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 11:04:49,437 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 11:04:49,440 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 118 transitions, 258 flow [2020-10-09 11:04:49,443 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 118 transitions, 258 flow [2020-10-09 11:04:49,445 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 111 places, 118 transitions, 258 flow [2020-10-09 11:04:49,504 INFO L129 PetriNetUnfolder]: 13/118 cut-off events. [2020-10-09 11:04:49,504 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-09 11:04:49,509 INFO L80 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 118 events. 13/118 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 68. Up to 3 conditions per place. [2020-10-09 11:04:49,512 INFO L117 LiptonReduction]: Number of co-enabled transitions 280 [2020-10-09 11:04:51,858 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2020-10-09 11:04:52,228 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2020-10-09 11:04:52,601 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-10-09 11:04:54,461 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-10-09 11:04:55,006 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-09 11:04:55,642 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-09 11:04:57,298 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification that was a NOOP. DAG size: 57 [2020-10-09 11:04:58,428 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-09 11:04:59,187 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-09 11:05:00,338 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-10-09 11:05:00,880 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-09 11:05:08,406 WARN L193 SmtUtils]: Spent 7.52 s on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-09 11:05:10,472 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 59 [2020-10-09 11:05:11,906 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-10-09 11:05:12,581 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-10-09 11:05:12,695 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-09 11:05:12,809 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-09 11:05:13,170 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2020-10-09 11:05:13,322 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-09 11:05:13,407 INFO L132 LiptonReduction]: Checked pairs total: 1097 [2020-10-09 11:05:13,408 INFO L134 LiptonReduction]: Total number of compositions: 130 [2020-10-09 11:05:13,414 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 26 transitions, 74 flow [2020-10-09 11:05:13,427 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 72 states. [2020-10-09 11:05:13,430 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-10-09 11:05:13,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-09 11:05:13,438 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:05:13,439 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:05:13,439 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:05:13,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:05:13,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1948892377, now seen corresponding path program 1 times [2020-10-09 11:05:13,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:05:13,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355993874] [2020-10-09 11:05:13,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:05:13,592 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-09 11:05:13,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339802553] [2020-10-09 11:05:13,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown