/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-18 22:07:32,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 22:07:32,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 22:07:32,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 22:07:32,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 22:07:32,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 22:07:32,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 22:07:32,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 22:07:32,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 22:07:32,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 22:07:32,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 22:07:32,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 22:07:32,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 22:07:32,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 22:07:32,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 22:07:32,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 22:07:32,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 22:07:32,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 22:07:32,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 22:07:32,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 22:07:32,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 22:07:32,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 22:07:32,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 22:07:32,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 22:07:32,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 22:07:32,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 22:07:32,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 22:07:32,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 22:07:32,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 22:07:32,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 22:07:32,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 22:07:32,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 22:07:32,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 22:07:32,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 22:07:32,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 22:07:32,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 22:07:32,158 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-01-18 22:07:32,191 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 22:07:32,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 22:07:32,193 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 22:07:32,193 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 22:07:32,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 22:07:32,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 22:07:32,194 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 22:07:32,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 22:07:32,194 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 22:07:32,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 22:07:32,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 22:07:32,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 22:07:32,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 22:07:32,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 22:07:32,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 22:07:32,195 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 22:07:32,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 22:07:32,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 22:07:32,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 22:07:32,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 22:07:32,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 22:07:32,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 22:07:32,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 22:07:32,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 22:07:32,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 22:07:32,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 22:07:32,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 22:07:32,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 22:07:32,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 22:07:32,197 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 22:07:32,197 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-18 22:07:32,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 22:07:32,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 22:07:32,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 22:07:32,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 22:07:32,438 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 22:07:32,439 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 22:07:32,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i [2022-01-18 22:07:32,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d7e387d7/279d95bb24be4beaac8c235662243c9b/FLAGe176005bb [2022-01-18 22:07:32,955 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 22:07:32,955 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i [2022-01-18 22:07:32,970 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d7e387d7/279d95bb24be4beaac8c235662243c9b/FLAGe176005bb [2022-01-18 22:07:32,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d7e387d7/279d95bb24be4beaac8c235662243c9b [2022-01-18 22:07:32,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 22:07:32,983 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 22:07:32,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 22:07:32,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 22:07:32,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 22:07:32,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:07:32" (1/1) ... [2022-01-18 22:07:32,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ff973f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:32, skipping insertion in model container [2022-01-18 22:07:32,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:07:32" (1/1) ... [2022-01-18 22:07:32,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 22:07:33,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 22:07:33,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i[938,951] [2022-01-18 22:07:33,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 22:07:33,351 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 22:07:33,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i[938,951] [2022-01-18 22:07:33,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 22:07:33,438 INFO L208 MainTranslator]: Completed translation [2022-01-18 22:07:33,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:33 WrapperNode [2022-01-18 22:07:33,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 22:07:33,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 22:07:33,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 22:07:33,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 22:07:33,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:33" (1/1) ... [2022-01-18 22:07:33,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:33" (1/1) ... [2022-01-18 22:07:33,504 INFO L137 Inliner]: procedures = 174, calls = 30, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 122 [2022-01-18 22:07:33,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 22:07:33,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 22:07:33,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 22:07:33,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 22:07:33,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:33" (1/1) ... [2022-01-18 22:07:33,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:33" (1/1) ... [2022-01-18 22:07:33,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:33" (1/1) ... [2022-01-18 22:07:33,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:33" (1/1) ... [2022-01-18 22:07:33,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:33" (1/1) ... [2022-01-18 22:07:33,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:33" (1/1) ... [2022-01-18 22:07:33,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:33" (1/1) ... [2022-01-18 22:07:33,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 22:07:33,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 22:07:33,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 22:07:33,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 22:07:33,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:33" (1/1) ... [2022-01-18 22:07:33,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 22:07:33,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 22:07:33,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 22:07:33,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 22:07:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 22:07:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 22:07:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 22:07:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 22:07:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 22:07:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2022-01-18 22:07:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2022-01-18 22:07:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2022-01-18 22:07:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2022-01-18 22:07:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 22:07:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 22:07:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 22:07:33,629 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 22:07:33,785 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 22:07:33,787 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 22:07:34,037 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 22:07:34,071 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 22:07:34,072 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-18 22:07:34,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:07:34 BoogieIcfgContainer [2022-01-18 22:07:34,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 22:07:34,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 22:07:34,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 22:07:34,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 22:07:34,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 10:07:32" (1/3) ... [2022-01-18 22:07:34,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f51a423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:07:34, skipping insertion in model container [2022-01-18 22:07:34,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:07:33" (2/3) ... [2022-01-18 22:07:34,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f51a423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:07:34, skipping insertion in model container [2022-01-18 22:07:34,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:07:34" (3/3) ... [2022-01-18 22:07:34,085 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd-2.i [2022-01-18 22:07:34,089 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 22:07:34,090 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-18 22:07:34,090 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 22:07:34,139 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,139 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,139 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,139 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,139 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,140 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,140 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,140 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,140 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,140 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,141 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,141 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,141 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,141 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,142 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,142 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,142 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,142 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,142 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,142 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,143 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,143 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,143 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,143 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,146 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,146 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,147 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,147 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,147 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,148 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,148 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,148 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:07:34,150 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 22:07:34,199 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 22:07:34,207 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 22:07:34,207 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 22:07:34,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 148 places, 153 transitions, 322 flow [2022-01-18 22:07:34,289 INFO L129 PetriNetUnfolder]: 12/151 cut-off events. [2022-01-18 22:07:34,289 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-18 22:07:34,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 151 events. 12/151 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-01-18 22:07:34,294 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 153 transitions, 322 flow [2022-01-18 22:07:34,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 141 transitions, 294 flow [2022-01-18 22:07:34,346 INFO L129 PetriNetUnfolder]: 10/124 cut-off events. [2022-01-18 22:07:34,347 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-18 22:07:34,347 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:07:34,348 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:07:34,348 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:07:34,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:07:34,354 INFO L85 PathProgramCache]: Analyzing trace with hash -690552940, now seen corresponding path program 1 times [2022-01-18 22:07:34,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:07:34,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797252515] [2022-01-18 22:07:34,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:34,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:07:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:07:34,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:07:34,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:07:34,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797252515] [2022-01-18 22:07:34,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797252515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:07:34,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:07:34,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 22:07:34,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284559746] [2022-01-18 22:07:34,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:07:34,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 22:07:34,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:07:34,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 22:07:34,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 22:07:34,653 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 153 [2022-01-18 22:07:34,659 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 141 transitions, 294 flow. Second operand has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:07:34,659 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:07:34,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 153 [2022-01-18 22:07:34,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:07:34,715 INFO L129 PetriNetUnfolder]: 9/152 cut-off events. [2022-01-18 22:07:34,716 INFO L130 PetriNetUnfolder]: For 17/18 co-relation queries the response was YES. [2022-01-18 22:07:34,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 152 events. 9/152 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 16/156 useless extension candidates. Maximal degree in co-relation 80. Up to 17 conditions per place. [2022-01-18 22:07:34,719 INFO L132 encePairwiseOnDemand]: 144/153 looper letters, 6 selfloop transitions, 0 changer transitions 5/130 dead transitions. [2022-01-18 22:07:34,720 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 130 transitions, 284 flow [2022-01-18 22:07:34,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 22:07:34,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-18 22:07:34,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 283 transitions. [2022-01-18 22:07:34,741 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9248366013071896 [2022-01-18 22:07:34,742 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 283 transitions. [2022-01-18 22:07:34,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 283 transitions. [2022-01-18 22:07:34,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:07:34,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 283 transitions. [2022-01-18 22:07:34,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 141.5) internal successors, (283), 2 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:07:34,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:07:34,762 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:07:34,764 INFO L186 Difference]: Start difference. First operand has 137 places, 141 transitions, 294 flow. Second operand 2 states and 283 transitions. [2022-01-18 22:07:34,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 130 transitions, 284 flow [2022-01-18 22:07:34,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 130 transitions, 276 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-18 22:07:34,772 INFO L242 Difference]: Finished difference. Result has 132 places, 125 transitions, 254 flow [2022-01-18 22:07:34,775 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=254, PETRI_PLACES=132, PETRI_TRANSITIONS=125} [2022-01-18 22:07:34,782 INFO L334 CegarLoopForPetriNet]: 137 programPoint places, -5 predicate places. [2022-01-18 22:07:34,783 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 125 transitions, 254 flow [2022-01-18 22:07:34,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:07:34,787 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:07:34,791 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:07:34,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 22:07:34,792 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:07:34,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:07:34,792 INFO L85 PathProgramCache]: Analyzing trace with hash -947970219, now seen corresponding path program 1 times [2022-01-18 22:07:34,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:07:34,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936236329] [2022-01-18 22:07:34,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:34,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:07:34,862 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-18 22:07:34,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750425214] [2022-01-18 22:07:34,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:34,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 22:07:34,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 22:07:34,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 22:07:34,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 22:07:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:07:35,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 26 conjunts are in the unsatisfiable core [2022-01-18 22:07:35,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 22:07:35,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:07:35,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 22:07:35,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:07:35,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936236329] [2022-01-18 22:07:35,877 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-18 22:07:35,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750425214] [2022-01-18 22:07:35,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750425214] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:07:35,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:07:35,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 22:07:35,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836873994] [2022-01-18 22:07:35,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:07:35,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 22:07:35,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:07:35,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 22:07:35,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-01-18 22:07:35,883 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 153 [2022-01-18 22:07:35,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 125 transitions, 254 flow. Second operand has 15 states, 15 states have (on average 77.93333333333334) internal successors, (1169), 15 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:07:35,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:07:35,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 153 [2022-01-18 22:07:35,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:07:36,565 INFO L129 PetriNetUnfolder]: 41/278 cut-off events. [2022-01-18 22:07:36,565 INFO L130 PetriNetUnfolder]: For 10/18 co-relation queries the response was YES. [2022-01-18 22:07:36,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 278 events. 41/278 cut-off events. For 10/18 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 596 event pairs, 18 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 443. Up to 77 conditions per place. [2022-01-18 22:07:36,567 INFO L132 encePairwiseOnDemand]: 134/153 looper letters, 80 selfloop transitions, 18 changer transitions 0/165 dead transitions. [2022-01-18 22:07:36,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 165 transitions, 533 flow [2022-01-18 22:07:36,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 22:07:36,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-18 22:07:36,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1449 transitions. [2022-01-18 22:07:36,572 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5261437908496732 [2022-01-18 22:07:36,572 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1449 transitions. [2022-01-18 22:07:36,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1449 transitions. [2022-01-18 22:07:36,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:07:36,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1449 transitions. [2022-01-18 22:07:36,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 80.5) internal successors, (1449), 18 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:07:36,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 153.0) internal successors, (2907), 19 states have internal predecessors, (2907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:07:36,584 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 153.0) internal successors, (2907), 19 states have internal predecessors, (2907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:07:36,584 INFO L186 Difference]: Start difference. First operand has 132 places, 125 transitions, 254 flow. Second operand 18 states and 1449 transitions. [2022-01-18 22:07:36,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 165 transitions, 533 flow [2022-01-18 22:07:36,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 165 transitions, 533 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 22:07:36,589 INFO L242 Difference]: Finished difference. Result has 153 places, 135 transitions, 352 flow [2022-01-18 22:07:36,589 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=352, PETRI_PLACES=153, PETRI_TRANSITIONS=135} [2022-01-18 22:07:36,590 INFO L334 CegarLoopForPetriNet]: 137 programPoint places, 16 predicate places. [2022-01-18 22:07:36,590 INFO L470 AbstractCegarLoop]: Abstraction has has 153 places, 135 transitions, 352 flow [2022-01-18 22:07:36,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 77.93333333333334) internal successors, (1169), 15 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:07:36,591 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:07:36,591 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:07:36,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 22:07:36,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 22:07:36,809 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:07:36,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:07:36,810 INFO L85 PathProgramCache]: Analyzing trace with hash 550151925, now seen corresponding path program 1 times [2022-01-18 22:07:36,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:07:36,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414139786] [2022-01-18 22:07:36,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:36,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:07:36,852 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-18 22:07:36,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2128670487] [2022-01-18 22:07:36,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:07:36,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 22:07:36,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 22:07:36,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 22:07:36,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 22:07:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:07:37,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 36 conjunts are in the unsatisfiable core [2022-01-18 22:07:37,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 22:07:38,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:07:38,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 22:08:08,867 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_main_~b_in~0#1| 4294967296))) (or (= (mod (mod (mod (+ |c_ULTIMATE.start_main_~b_in~0#1| .cse0) 4294967296) .cse0) 4294967296) 0) (<= (div (+ (* |c_ULTIMATE.start_main_~b_in~0#1| (- 4294967295)) (- 4294967296) (* .cse0 (- 4294967295))) (- 4294967296)) (+ (div (* |c_ULTIMATE.start_main_~b_in~0#1| 4294967295) 4294967296) .cse0 1)))) is different from true [2022-01-18 22:08:14,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:08:14,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:08:14,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414139786] [2022-01-18 22:08:14,889 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-18 22:08:14,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128670487] [2022-01-18 22:08:14,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128670487] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 22:08:14,889 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-18 22:08:14,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 34 [2022-01-18 22:08:14,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902873678] [2022-01-18 22:08:14,890 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-18 22:08:14,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 22:08:14,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:08:14,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 22:08:14,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=959, Unknown=6, NotChecked=62, Total=1122 [2022-01-18 22:08:14,898 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 153 [2022-01-18 22:08:14,901 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 135 transitions, 352 flow. Second operand has 34 states, 34 states have (on average 73.61764705882354) internal successors, (2503), 34 states have internal predecessors, (2503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:08:14,901 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:08:14,901 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 153 [2022-01-18 22:08:14,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:08:16,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:08:21,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:08:26,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:08:28,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:08:30,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:08:36,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:08:38,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:08:45,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:09:15,508 WARN L228 SmtUtils]: Spent 24.81s on a formula simplification. DAG size of input: 58 DAG size of output: 44 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:09:17,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:09:22,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:09:24,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:09:27,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:09:29,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:09:31,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:09:33,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:09:35,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:09:46,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:09:48,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:09:50,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:09:53,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:09:55,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:00,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:02,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:04,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:07,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:09,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:11,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:13,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:15,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:17,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:33,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:35,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:37,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:39,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:41,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:44,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:10:55,376 WARN L228 SmtUtils]: Spent 9.96s on a formula simplification. DAG size of input: 76 DAG size of output: 45 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:10:57,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:11:27,033 WARN L228 SmtUtils]: Spent 24.07s on a formula simplification. DAG size of input: 63 DAG size of output: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:11:46,375 WARN L228 SmtUtils]: Spent 17.27s on a formula simplification. DAG size of input: 84 DAG size of output: 53 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:11:48,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:12:40,919 WARN L228 SmtUtils]: Spent 45.19s on a formula simplification. DAG size of input: 68 DAG size of output: 54 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:12:53,580 WARN L228 SmtUtils]: Spent 9.97s on a formula simplification. DAG size of input: 94 DAG size of output: 63 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:12:56,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:13:44,826 WARN L228 SmtUtils]: Spent 41.84s on a formula simplification. DAG size of input: 75 DAG size of output: 61 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:14:07,747 WARN L228 SmtUtils]: Spent 18.35s on a formula simplification. DAG size of input: 100 DAG size of output: 67 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:14:11,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:14:13,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:14:46,590 WARN L228 SmtUtils]: Spent 26.59s on a formula simplification. DAG size of input: 80 DAG size of output: 66 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:14:58,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:15:31,308 WARN L228 SmtUtils]: Spent 26.68s on a formula simplification. DAG size of input: 85 DAG size of output: 71 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:16:02,158 WARN L228 SmtUtils]: Spent 19.02s on a formula simplification. DAG size of input: 94 DAG size of output: 82 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:16:04,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:16:48,585 WARN L228 SmtUtils]: Spent 33.29s on a formula simplification. DAG size of input: 79 DAG size of output: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:16:54,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:17:33,981 WARN L228 SmtUtils]: Spent 25.67s on a formula simplification. DAG size of input: 71 DAG size of output: 66 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:17:40,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:17:43,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:17:46,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:17:48,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:17:50,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:17:52,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:17:54,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:17:56,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:17:59,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:18:02,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:18:03,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:18:26,826 WARN L228 SmtUtils]: Spent 20.28s on a formula simplification. DAG size of input: 97 DAG size of output: 85 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:18:29,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:18:52,083 WARN L228 SmtUtils]: Spent 15.33s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:19:02,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:19:04,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:19:28,033 WARN L228 SmtUtils]: Spent 16.23s on a formula simplification that was a NOOP. DAG size: 76 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:19:31,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:19:34,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:19:46,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:19:57,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:22,406 WARN L228 SmtUtils]: Spent 15.04s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-18 22:20:24,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:26,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:28,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:30,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:32,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:34,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:36,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:38,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:40,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:42,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:44,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:46,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:48,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:50,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:52,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-18 22:20:52,997 INFO L129 PetriNetUnfolder]: 92/549 cut-off events. [2022-01-18 22:20:52,998 INFO L130 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2022-01-18 22:20:52,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 987 conditions, 549 events. 92/549 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2228 event pairs, 7 based on Foata normal form. 2/492 useless extension candidates. Maximal degree in co-relation 974. Up to 32 conditions per place. [2022-01-18 22:20:53,002 INFO L132 encePairwiseOnDemand]: 125/153 looper letters, 147 selfloop transitions, 80 changer transitions 0/290 dead transitions. [2022-01-18 22:20:53,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 290 transitions, 1192 flow [2022-01-18 22:20:53,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 22:20:53,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-01-18 22:20:53,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 4067 transitions. [2022-01-18 22:20:53,023 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.49225369160009685 [2022-01-18 22:20:53,024 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 4067 transitions. [2022-01-18 22:20:53,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 4067 transitions. [2022-01-18 22:20:53,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:20:53,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 4067 transitions. [2022-01-18 22:20:53,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 75.31481481481481) internal successors, (4067), 54 states have internal predecessors, (4067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:20:53,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 153.0) internal successors, (8415), 55 states have internal predecessors, (8415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:20:53,050 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 153.0) internal successors, (8415), 55 states have internal predecessors, (8415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:20:53,051 INFO L186 Difference]: Start difference. First operand has 153 places, 135 transitions, 352 flow. Second operand 54 states and 4067 transitions. [2022-01-18 22:20:53,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 290 transitions, 1192 flow [2022-01-18 22:20:53,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 290 transitions, 1173 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-01-18 22:20:53,061 INFO L242 Difference]: Finished difference. Result has 205 places, 202 transitions, 792 flow [2022-01-18 22:20:53,062 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=792, PETRI_PLACES=205, PETRI_TRANSITIONS=202} [2022-01-18 22:20:53,064 INFO L334 CegarLoopForPetriNet]: 137 programPoint places, 68 predicate places. [2022-01-18 22:20:53,064 INFO L470 AbstractCegarLoop]: Abstraction has has 205 places, 202 transitions, 792 flow [2022-01-18 22:20:53,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 73.61764705882354) internal successors, (2503), 34 states have internal predecessors, (2503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:20:53,065 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:20:53,065 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:20:53,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 22:20:53,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-18 22:20:53,272 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:20:53,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:20:53,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1804860361, now seen corresponding path program 1 times [2022-01-18 22:20:53,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:20:53,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471734342] [2022-01-18 22:20:53,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:20:53,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:20:53,293 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-18 22:20:53,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2072377014] [2022-01-18 22:20:53,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:20:53,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 22:20:53,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 22:20:53,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 22:20:53,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 22:20:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:20:59,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 49 conjunts are in the unsatisfiable core [2022-01-18 22:20:59,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-01-18 22:22:08,999 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 22:22:09,003 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 22:22:09,007 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-18 22:22:09,008 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-18 22:22:09,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 22:22:09,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 22:22:09,209 WARN L594 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 110 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 15 for 1ms.. [2022-01-18 22:22:09,211 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-01-18 22:22:09,211 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-01-18 22:22:09,211 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 22:22:09,211 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 22:22:09,213 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-18 22:22:09,215 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 22:22:09,215 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 22:22:09,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 10:22:09 BasicIcfg [2022-01-18 22:22:09,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 22:22:09,218 INFO L158 Benchmark]: Toolchain (without parser) took 876234.76ms. Allocated memory was 362.8MB in the beginning and 480.2MB in the end (delta: 117.4MB). Free memory was 307.8MB in the beginning and 236.4MB in the end (delta: 71.4MB). Peak memory consumption was 190.4MB. Max. memory is 16.0GB. [2022-01-18 22:22:09,218 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 362.8MB. Free memory is still 325.7MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 22:22:09,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.55ms. Allocated memory is still 362.8MB. Free memory was 307.6MB in the beginning and 325.4MB in the end (delta: -17.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.0GB. [2022-01-18 22:22:09,219 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.53ms. Allocated memory is still 362.8MB. Free memory was 325.4MB in the beginning and 323.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 22:22:09,219 INFO L158 Benchmark]: Boogie Preprocessor took 43.21ms. Allocated memory is still 362.8MB. Free memory was 322.3MB in the beginning and 321.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 22:22:09,219 INFO L158 Benchmark]: RCFGBuilder took 525.43ms. Allocated memory is still 362.8MB. Free memory was 321.2MB in the beginning and 304.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-18 22:22:09,220 INFO L158 Benchmark]: TraceAbstraction took 875138.88ms. Allocated memory was 362.8MB in the beginning and 480.2MB in the end (delta: 117.4MB). Free memory was 303.4MB in the beginning and 236.4MB in the end (delta: 67.0MB). Peak memory consumption was 187.1MB. Max. memory is 16.0GB. [2022-01-18 22:22:09,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 362.8MB. Free memory is still 325.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 454.55ms. Allocated memory is still 362.8MB. Free memory was 307.6MB in the beginning and 325.4MB in the end (delta: -17.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 64.53ms. Allocated memory is still 362.8MB. Free memory was 325.4MB in the beginning and 323.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 43.21ms. Allocated memory is still 362.8MB. Free memory was 322.3MB in the beginning and 321.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 525.43ms. Allocated memory is still 362.8MB. Free memory was 321.2MB in the beginning and 304.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 875138.88ms. Allocated memory was 362.8MB in the beginning and 480.2MB in the end (delta: 117.4MB). Free memory was 303.4MB in the beginning and 236.4MB in the end (delta: 67.0MB). Peak memory consumption was 187.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 110 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 15 for 1ms.. - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 110 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 15 for 1ms.. - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 110 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 15 for 1ms.. - TimeoutResultAtElement [Line: 729]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 110 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 15 for 1ms.. - TimeoutResultAtElement [Line: 730]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 110 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 15 for 1ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 156 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 875.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 759.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 74 mSolverCounterUnknown, 2013 SdHoareTripleChecker+Valid, 171.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2013 mSDsluCounter, 1181 SdHoareTripleChecker+Invalid, 170.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 168 IncrementalHoareTripleChecker+Unchecked, 1261 mSDsCounter, 131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1272 IncrementalHoareTripleChecker+Invalid, 1645 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 131 mSolverCounterUnsat, 86 mSDtfsCounter, 1272 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 386 GetRequests, 274 SyntacticMatches, 3 SemanticMatches, 109 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1277 ImplicationChecksByTransitivity, 609.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=792occurred in iteration=3, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 38.7s InterpolantComputationTime, 317 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 3758 SizeOfPredicates, 31 NumberOfNonLiveVariables, 462 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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