./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 02:59:18,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 02:59:18,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 02:59:18,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 02:59:18,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 02:59:18,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 02:59:18,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 02:59:18,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 02:59:18,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 02:59:18,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 02:59:18,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 02:59:18,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 02:59:18,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 02:59:18,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 02:59:18,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 02:59:18,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 02:59:18,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 02:59:18,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 02:59:18,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 02:59:18,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 02:59:18,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 02:59:18,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 02:59:18,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 02:59:18,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 02:59:18,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 02:59:18,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 02:59:18,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 02:59:18,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 02:59:18,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 02:59:18,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 02:59:18,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 02:59:18,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 02:59:18,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 02:59:18,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 02:59:18,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 02:59:18,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 02:59:18,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 02:59:18,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 02:59:18,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 02:59:18,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 02:59:18,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 02:59:18,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 02:59:18,244 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 02:59:18,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 02:59:18,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 02:59:18,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 02:59:18,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 02:59:18,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 02:59:18,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 02:59:18,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 02:59:18,247 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 02:59:18,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 02:59:18,247 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 02:59:18,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 02:59:18,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 02:59:18,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 02:59:18,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 02:59:18,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 02:59:18,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 02:59:18,248 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 02:59:18,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 02:59:18,249 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 02:59:18,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 02:59:18,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 02:59:18,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 02:59:18,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 02:59:18,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 02:59:18,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 02:59:18,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 02:59:18,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 02:59:18,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 02:59:18,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 02:59:18,252 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 02:59:18,252 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 02:59:18,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 02:59:18,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 02:59:18,253 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 [2021-12-16 02:59:18,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 02:59:18,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 02:59:18,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 02:59:18,477 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 02:59:18,477 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 02:59:18,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2021-12-16 02:59:18,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ede9ebece/8b843a8082fc42e082514109ad201eeb/FLAGa71a5eab6 [2021-12-16 02:59:18,934 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 02:59:18,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2021-12-16 02:59:18,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ede9ebece/8b843a8082fc42e082514109ad201eeb/FLAGa71a5eab6 [2021-12-16 02:59:19,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ede9ebece/8b843a8082fc42e082514109ad201eeb [2021-12-16 02:59:19,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 02:59:19,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 02:59:19,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 02:59:19,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 02:59:19,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 02:59:19,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:59:19" (1/1) ... [2021-12-16 02:59:19,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b46ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:19, skipping insertion in model container [2021-12-16 02:59:19,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:59:19" (1/1) ... [2021-12-16 02:59:19,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 02:59:19,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 02:59:19,577 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] [2021-12-16 02:59:19,589 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-16 02:59:19,590 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-16 02:59:19,590 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-16 02:59:19,591 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-16 02:59:19,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 02:59:19,622 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 02:59:19,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] [2021-12-16 02:59:19,647 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-16 02:59:19,648 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-16 02:59:19,648 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-16 02:59:19,648 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-16 02:59:19,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 02:59:19,693 INFO L208 MainTranslator]: Completed translation [2021-12-16 02:59:19,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:19 WrapperNode [2021-12-16 02:59:19,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 02:59:19,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 02:59:19,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 02:59:19,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 02:59:19,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:19" (1/1) ... [2021-12-16 02:59:19,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:19" (1/1) ... [2021-12-16 02:59:19,750 INFO L137 Inliner]: procedures = 278, calls = 51, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 221 [2021-12-16 02:59:19,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 02:59:19,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 02:59:19,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 02:59:19,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 02:59:19,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:19" (1/1) ... [2021-12-16 02:59:19,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:19" (1/1) ... [2021-12-16 02:59:19,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:19" (1/1) ... [2021-12-16 02:59:19,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:19" (1/1) ... [2021-12-16 02:59:19,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:19" (1/1) ... [2021-12-16 02:59:19,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:19" (1/1) ... [2021-12-16 02:59:19,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:19" (1/1) ... [2021-12-16 02:59:19,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 02:59:19,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 02:59:19,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 02:59:19,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 02:59:19,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:19" (1/1) ... [2021-12-16 02:59:19,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 02:59:19,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 02:59:19,812 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) [2021-12-16 02:59:19,832 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 [2021-12-16 02:59:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 02:59:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 02:59:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 02:59:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 02:59:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 02:59:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-16 02:59:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 02:59:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 02:59:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 02:59:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-16 02:59:19,858 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-16 02:59:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 02:59:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 02:59:19,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 02:59:19,860 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-16 02:59:20,027 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 02:59:20,029 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 02:59:20,280 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 02:59:20,286 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 02:59:20,287 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-12-16 02:59:20,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:59:20 BoogieIcfgContainer [2021-12-16 02:59:20,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 02:59:20,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 02:59:20,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 02:59:20,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 02:59:20,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:59:19" (1/3) ... [2021-12-16 02:59:20,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5eb9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:59:20, skipping insertion in model container [2021-12-16 02:59:20,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:19" (2/3) ... [2021-12-16 02:59:20,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5eb9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:59:20, skipping insertion in model container [2021-12-16 02:59:20,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:59:20" (3/3) ... [2021-12-16 02:59:20,296 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2021-12-16 02:59:20,300 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-16 02:59:20,300 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 02:59:20,301 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 02:59:20,301 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-16 02:59:20,333 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,335 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,335 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,335 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,335 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,339 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,339 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,339 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,341 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,344 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,344 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,344 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,344 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,344 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,344 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,345 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,345 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,345 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,345 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,345 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,345 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,345 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,346 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,346 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,346 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,346 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,346 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,346 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,346 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,347 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,347 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,347 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,347 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,347 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,354 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,354 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,354 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,354 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,354 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,354 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,354 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,354 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,355 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,355 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,355 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,355 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,355 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,355 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,355 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,357 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,357 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,357 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,357 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,357 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,357 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,357 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,357 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,358 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,358 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,358 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,358 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,358 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,359 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,359 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,359 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,359 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,359 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,359 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,359 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,359 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,360 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,360 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,360 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,360 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,360 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,360 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,360 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,361 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,361 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,361 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,361 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,361 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,361 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,362 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,363 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,363 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,363 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,363 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,363 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,363 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,363 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,364 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,364 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,364 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,364 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,364 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,364 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,364 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,364 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,364 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,365 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,365 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,365 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,365 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,365 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,365 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,365 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,366 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,366 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,366 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,366 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,371 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,371 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,371 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,371 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,371 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,371 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,371 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,373 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,374 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,374 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,374 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,374 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,374 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,374 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,374 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,374 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,374 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,377 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,377 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,377 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,377 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,377 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,377 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,377 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,377 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,377 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,377 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,379 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,379 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,379 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,379 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,379 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,379 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,379 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:20,381 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-16 02:59:20,427 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 02:59:20,431 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=true, 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 [2021-12-16 02:59:20,431 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-16 02:59:20,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 230 places, 253 transitions, 514 flow [2021-12-16 02:59:20,515 INFO L129 PetriNetUnfolder]: 28/270 cut-off events. [2021-12-16 02:59:20,516 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2021-12-16 02:59:20,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 270 events. 28/270 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 407 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 152. Up to 4 conditions per place. [2021-12-16 02:59:20,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 253 transitions, 514 flow [2021-12-16 02:59:20,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 226 places, 248 transitions, 501 flow [2021-12-16 02:59:20,546 INFO L129 PetriNetUnfolder]: 10/179 cut-off events. [2021-12-16 02:59:20,546 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-16 02:59:20,547 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:20,547 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:59:20,553 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 02:59:20,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:20,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1618434674, now seen corresponding path program 1 times [2021-12-16 02:59:20,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:20,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683360317] [2021-12-16 02:59:20,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:20,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-16 02:59:20,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:20,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683360317] [2021-12-16 02:59:20,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683360317] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:59:20,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:59:20,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 02:59:20,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058155671] [2021-12-16 02:59:20,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:59:20,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 02:59:20,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:20,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 02:59:20,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 02:59:20,798 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 253 [2021-12-16 02:59:20,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 248 transitions, 501 flow. Second operand has 2 states, 2 states have (on average 231.0) internal successors, (462), 2 states have internal predecessors, (462), 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) [2021-12-16 02:59:20,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:20,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 253 [2021-12-16 02:59:20,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:20,876 INFO L129 PetriNetUnfolder]: 5/242 cut-off events. [2021-12-16 02:59:20,876 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-16 02:59:20,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 242 events. 5/242 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 271 event pairs, 0 based on Foata normal form. 22/251 useless extension candidates. Maximal degree in co-relation 146. Up to 2 conditions per place. [2021-12-16 02:59:20,884 INFO L132 encePairwiseOnDemand]: 233/253 looper letters, 1 selfloop transitions, 0 changer transitions 2/227 dead transitions. [2021-12-16 02:59:20,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 227 transitions, 461 flow [2021-12-16 02:59:20,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 02:59:20,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-16 02:59:20,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 481 transitions. [2021-12-16 02:59:20,895 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.950592885375494 [2021-12-16 02:59:20,896 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 481 transitions. [2021-12-16 02:59:20,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 481 transitions. [2021-12-16 02:59:20,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:20,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 481 transitions. [2021-12-16 02:59:20,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 240.5) internal successors, (481), 2 states have internal predecessors, (481), 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) [2021-12-16 02:59:20,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 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) [2021-12-16 02:59:20,910 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 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) [2021-12-16 02:59:20,911 INFO L186 Difference]: Start difference. First operand has 226 places, 248 transitions, 501 flow. Second operand 2 states and 481 transitions. [2021-12-16 02:59:20,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 227 transitions, 461 flow [2021-12-16 02:59:20,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 227 transitions, 461 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-16 02:59:20,918 INFO L242 Difference]: Finished difference. Result has 226 places, 225 transitions, 455 flow [2021-12-16 02:59:20,920 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=455, PETRI_PLACES=226, PETRI_TRANSITIONS=225} [2021-12-16 02:59:20,922 INFO L334 CegarLoopForPetriNet]: 226 programPoint places, 0 predicate places. [2021-12-16 02:59:20,922 INFO L470 AbstractCegarLoop]: Abstraction has has 226 places, 225 transitions, 455 flow [2021-12-16 02:59:20,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 231.0) internal successors, (462), 2 states have internal predecessors, (462), 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) [2021-12-16 02:59:20,923 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:20,925 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:59:20,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 02:59:20,926 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 02:59:20,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:20,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1010357811, now seen corresponding path program 1 times [2021-12-16 02:59:20,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:20,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490260391] [2021-12-16 02:59:20,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:20,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:21,005 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-16 02:59:21,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:21,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490260391] [2021-12-16 02:59:21,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490260391] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:59:21,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:59:21,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 02:59:21,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174267530] [2021-12-16 02:59:21,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:59:21,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 02:59:21,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:21,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 02:59:21,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 02:59:21,012 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 253 [2021-12-16 02:59:21,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 225 transitions, 455 flow. Second operand has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 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) [2021-12-16 02:59:21,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:21,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 253 [2021-12-16 02:59:21,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:21,065 INFO L129 PetriNetUnfolder]: 6/290 cut-off events. [2021-12-16 02:59:21,073 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-16 02:59:21,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 290 events. 6/290 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 403 event pairs, 0 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 311. Up to 12 conditions per place. [2021-12-16 02:59:21,075 INFO L132 encePairwiseOnDemand]: 250/253 looper letters, 16 selfloop transitions, 2 changer transitions 0/232 dead transitions. [2021-12-16 02:59:21,075 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 232 transitions, 505 flow [2021-12-16 02:59:21,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 02:59:21,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-16 02:59:21,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 679 transitions. [2021-12-16 02:59:21,080 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8945981554677207 [2021-12-16 02:59:21,080 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 679 transitions. [2021-12-16 02:59:21,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 679 transitions. [2021-12-16 02:59:21,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:21,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 679 transitions. [2021-12-16 02:59:21,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 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) [2021-12-16 02:59:21,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 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) [2021-12-16 02:59:21,086 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 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) [2021-12-16 02:59:21,086 INFO L186 Difference]: Start difference. First operand has 226 places, 225 transitions, 455 flow. Second operand 3 states and 679 transitions. [2021-12-16 02:59:21,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 232 transitions, 505 flow [2021-12-16 02:59:21,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 232 transitions, 505 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-16 02:59:21,092 INFO L242 Difference]: Finished difference. Result has 227 places, 226 transitions, 467 flow [2021-12-16 02:59:21,093 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=467, PETRI_PLACES=227, PETRI_TRANSITIONS=226} [2021-12-16 02:59:21,094 INFO L334 CegarLoopForPetriNet]: 226 programPoint places, 1 predicate places. [2021-12-16 02:59:21,094 INFO L470 AbstractCegarLoop]: Abstraction has has 227 places, 226 transitions, 467 flow [2021-12-16 02:59:21,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 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) [2021-12-16 02:59:21,095 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:21,095 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:59:21,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 02:59:21,095 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 02:59:21,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:21,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1795324933, now seen corresponding path program 1 times [2021-12-16 02:59:21,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:21,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839084623] [2021-12-16 02:59:21,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:21,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:21,222 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-16 02:59:21,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:21,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839084623] [2021-12-16 02:59:21,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839084623] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:59:21,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:59:21,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 02:59:21,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069318634] [2021-12-16 02:59:21,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:59:21,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 02:59:21,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:21,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 02:59:21,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 02:59:21,232 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 253 [2021-12-16 02:59:21,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 226 transitions, 467 flow. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 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) [2021-12-16 02:59:21,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:21,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 253 [2021-12-16 02:59:21,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:21,282 INFO L129 PetriNetUnfolder]: 6/362 cut-off events. [2021-12-16 02:59:21,282 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-16 02:59:21,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 362 events. 6/362 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 547 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 392. Up to 15 conditions per place. [2021-12-16 02:59:21,284 INFO L132 encePairwiseOnDemand]: 250/253 looper letters, 10 selfloop transitions, 2 changer transitions 0/230 dead transitions. [2021-12-16 02:59:21,284 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 230 transitions, 499 flow [2021-12-16 02:59:21,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 02:59:21,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-16 02:59:21,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-12-16 02:59:21,286 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8985507246376812 [2021-12-16 02:59:21,286 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-12-16 02:59:21,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-12-16 02:59:21,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:21,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-12-16 02:59:21,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 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) [2021-12-16 02:59:21,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 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) [2021-12-16 02:59:21,290 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 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) [2021-12-16 02:59:21,291 INFO L186 Difference]: Start difference. First operand has 227 places, 226 transitions, 467 flow. Second operand 3 states and 682 transitions. [2021-12-16 02:59:21,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 230 transitions, 499 flow [2021-12-16 02:59:21,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 230 transitions, 497 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-16 02:59:21,299 INFO L242 Difference]: Finished difference. Result has 229 places, 227 transitions, 477 flow [2021-12-16 02:59:21,300 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=477, PETRI_PLACES=229, PETRI_TRANSITIONS=227} [2021-12-16 02:59:21,302 INFO L334 CegarLoopForPetriNet]: 226 programPoint places, 3 predicate places. [2021-12-16 02:59:21,302 INFO L470 AbstractCegarLoop]: Abstraction has has 229 places, 227 transitions, 477 flow [2021-12-16 02:59:21,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 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) [2021-12-16 02:59:21,302 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:21,303 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:59:21,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 02:59:21,303 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 02:59:21,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:21,305 INFO L85 PathProgramCache]: Analyzing trace with hash 165065027, now seen corresponding path program 1 times [2021-12-16 02:59:21,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:21,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536574591] [2021-12-16 02:59:21,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:21,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:21,354 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-16 02:59:21,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314214097] [2021-12-16 02:59:21,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:21,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 02:59:21,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 02:59:21,360 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) [2021-12-16 02:59:21,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 02:59:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:21,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 02:59:21,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 02:59:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-16 02:59:21,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 02:59:22,094 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-16 02:59:22,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:22,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536574591] [2021-12-16 02:59:22,095 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-16 02:59:22,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314214097] [2021-12-16 02:59:22,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314214097] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 02:59:22,096 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-16 02:59:22,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-16 02:59:22,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466700218] [2021-12-16 02:59:22,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-16 02:59:22,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 02:59:22,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:22,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 02:59:22,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-16 02:59:22,099 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 253 [2021-12-16 02:59:22,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 227 transitions, 477 flow. Second operand has 8 states, 8 states have (on average 224.0) internal successors, (1792), 8 states have internal predecessors, (1792), 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) [2021-12-16 02:59:22,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:22,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 253 [2021-12-16 02:59:22,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:22,194 INFO L129 PetriNetUnfolder]: 6/440 cut-off events. [2021-12-16 02:59:22,194 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-12-16 02:59:22,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 504 conditions, 440 events. 6/440 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 480 event pairs, 0 based on Foata normal form. 4/435 useless extension candidates. Maximal degree in co-relation 497. Up to 10 conditions per place. [2021-12-16 02:59:22,196 INFO L132 encePairwiseOnDemand]: 247/253 looper letters, 11 selfloop transitions, 9 changer transitions 0/237 dead transitions. [2021-12-16 02:59:22,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 237 transitions, 539 flow [2021-12-16 02:59:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 02:59:22,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-16 02:59:22,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2020 transitions. [2021-12-16 02:59:22,200 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8871321914800175 [2021-12-16 02:59:22,200 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2020 transitions. [2021-12-16 02:59:22,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2020 transitions. [2021-12-16 02:59:22,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:22,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2020 transitions. [2021-12-16 02:59:22,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.44444444444446) internal successors, (2020), 9 states have internal predecessors, (2020), 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) [2021-12-16 02:59:22,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 253.0) internal successors, (2530), 10 states have internal predecessors, (2530), 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) [2021-12-16 02:59:22,209 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 253.0) internal successors, (2530), 10 states have internal predecessors, (2530), 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) [2021-12-16 02:59:22,209 INFO L186 Difference]: Start difference. First operand has 229 places, 227 transitions, 477 flow. Second operand 9 states and 2020 transitions. [2021-12-16 02:59:22,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 237 transitions, 539 flow [2021-12-16 02:59:22,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 237 transitions, 537 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-16 02:59:22,213 INFO L242 Difference]: Finished difference. Result has 239 places, 233 transitions, 525 flow [2021-12-16 02:59:22,213 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=525, PETRI_PLACES=239, PETRI_TRANSITIONS=233} [2021-12-16 02:59:22,213 INFO L334 CegarLoopForPetriNet]: 226 programPoint places, 13 predicate places. [2021-12-16 02:59:22,214 INFO L470 AbstractCegarLoop]: Abstraction has has 239 places, 233 transitions, 525 flow [2021-12-16 02:59:22,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 224.0) internal successors, (1792), 8 states have internal predecessors, (1792), 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) [2021-12-16 02:59:22,215 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:22,215 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:59:22,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-16 02:59:22,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 02:59:22,452 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 02:59:22,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:22,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1787124669, now seen corresponding path program 2 times [2021-12-16 02:59:22,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:22,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665487387] [2021-12-16 02:59:22,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:22,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:22,493 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-16 02:59:22,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [9456681] [2021-12-16 02:59:22,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 02:59:22,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 02:59:22,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 02:59:22,495 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) [2021-12-16 02:59:22,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 02:59:22,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 02:59:22,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 02:59:22,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 02:59:22,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 02:59:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 1 proven. 114 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-16 02:59:22,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 02:59:23,322 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 1 proven. 114 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-16 02:59:23,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:23,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665487387] [2021-12-16 02:59:23,322 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-16 02:59:23,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9456681] [2021-12-16 02:59:23,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9456681] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 02:59:23,323 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-16 02:59:23,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-12-16 02:59:23,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985642959] [2021-12-16 02:59:23,323 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-16 02:59:23,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-16 02:59:23,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:23,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-16 02:59:23,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-12-16 02:59:23,327 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 253 [2021-12-16 02:59:23,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 233 transitions, 525 flow. Second operand has 16 states, 16 states have (on average 224.25) internal successors, (3588), 16 states have internal predecessors, (3588), 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) [2021-12-16 02:59:23,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:23,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 253 [2021-12-16 02:59:23,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:23,553 INFO L129 PetriNetUnfolder]: 6/736 cut-off events. [2021-12-16 02:59:23,553 INFO L130 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2021-12-16 02:59:23,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 936 conditions, 736 events. 6/736 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 480 event pairs, 0 based on Foata normal form. 8/735 useless extension candidates. Maximal degree in co-relation 927. Up to 22 conditions per place. [2021-12-16 02:59:23,554 INFO L132 encePairwiseOnDemand]: 247/253 looper letters, 19 selfloop transitions, 21 changer transitions 0/257 dead transitions. [2021-12-16 02:59:23,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 257 transitions, 713 flow [2021-12-16 02:59:23,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-16 02:59:23,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-12-16 02:59:23,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4706 transitions. [2021-12-16 02:59:23,563 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8857519292301901 [2021-12-16 02:59:23,563 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4706 transitions. [2021-12-16 02:59:23,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4706 transitions. [2021-12-16 02:59:23,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:23,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4706 transitions. [2021-12-16 02:59:23,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 224.0952380952381) internal successors, (4706), 21 states have internal predecessors, (4706), 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) [2021-12-16 02:59:23,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 253.0) internal successors, (5566), 22 states have internal predecessors, (5566), 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) [2021-12-16 02:59:23,581 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 253.0) internal successors, (5566), 22 states have internal predecessors, (5566), 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) [2021-12-16 02:59:23,581 INFO L186 Difference]: Start difference. First operand has 239 places, 233 transitions, 525 flow. Second operand 21 states and 4706 transitions. [2021-12-16 02:59:23,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 257 transitions, 713 flow [2021-12-16 02:59:23,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 257 transitions, 699 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-12-16 02:59:23,586 INFO L242 Difference]: Finished difference. Result has 263 places, 246 transitions, 649 flow [2021-12-16 02:59:23,587 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=649, PETRI_PLACES=263, PETRI_TRANSITIONS=246} [2021-12-16 02:59:23,587 INFO L334 CegarLoopForPetriNet]: 226 programPoint places, 37 predicate places. [2021-12-16 02:59:23,587 INFO L470 AbstractCegarLoop]: Abstraction has has 263 places, 246 transitions, 649 flow [2021-12-16 02:59:23,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 224.25) internal successors, (3588), 16 states have internal predecessors, (3588), 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) [2021-12-16 02:59:23,588 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:23,589 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:59:23,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 02:59:23,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 02:59:23,804 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 02:59:23,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:23,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2129611331, now seen corresponding path program 3 times [2021-12-16 02:59:23,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:23,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127856026] [2021-12-16 02:59:23,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:23,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:23,845 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-16 02:59:23,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226510239] [2021-12-16 02:59:23,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-16 02:59:23,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 02:59:23,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 02:59:23,847 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) [2021-12-16 02:59:23,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 02:59:24,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-16 02:59:24,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 02:59:24,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 02:59:24,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 02:59:24,559 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2021-12-16 02:59:24,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 02:59:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2021-12-16 02:59:25,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:25,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127856026] [2021-12-16 02:59:25,110 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-16 02:59:25,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226510239] [2021-12-16 02:59:25,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226510239] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 02:59:25,110 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-16 02:59:25,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-16 02:59:25,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980082803] [2021-12-16 02:59:25,111 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-16 02:59:25,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 02:59:25,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:25,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 02:59:25,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-16 02:59:25,119 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 253 [2021-12-16 02:59:25,120 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 246 transitions, 649 flow. Second operand has 8 states, 8 states have (on average 221.75) internal successors, (1774), 8 states have internal predecessors, (1774), 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) [2021-12-16 02:59:25,120 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:25,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 253 [2021-12-16 02:59:25,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:25,347 INFO L129 PetriNetUnfolder]: 7/1012 cut-off events. [2021-12-16 02:59:25,348 INFO L130 PetriNetUnfolder]: For 113/113 co-relation queries the response was YES. [2021-12-16 02:59:25,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1348 conditions, 1012 events. 7/1012 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 165 event pairs, 0 based on Foata normal form. 2/1005 useless extension candidates. Maximal degree in co-relation 1334. Up to 33 conditions per place. [2021-12-16 02:59:25,350 INFO L132 encePairwiseOnDemand]: 247/253 looper letters, 20 selfloop transitions, 9 changer transitions 0/262 dead transitions. [2021-12-16 02:59:25,350 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 262 transitions, 741 flow [2021-12-16 02:59:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 02:59:25,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-16 02:59:25,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2002 transitions. [2021-12-16 02:59:25,354 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8792270531400966 [2021-12-16 02:59:25,354 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2002 transitions. [2021-12-16 02:59:25,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2002 transitions. [2021-12-16 02:59:25,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:25,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2002 transitions. [2021-12-16 02:59:25,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 222.44444444444446) internal successors, (2002), 9 states have internal predecessors, (2002), 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) [2021-12-16 02:59:25,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 253.0) internal successors, (2530), 10 states have internal predecessors, (2530), 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) [2021-12-16 02:59:25,361 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 253.0) internal successors, (2530), 10 states have internal predecessors, (2530), 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) [2021-12-16 02:59:25,361 INFO L186 Difference]: Start difference. First operand has 263 places, 246 transitions, 649 flow. Second operand 9 states and 2002 transitions. [2021-12-16 02:59:25,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 262 transitions, 741 flow [2021-12-16 02:59:25,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 262 transitions, 717 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-12-16 02:59:25,366 INFO L242 Difference]: Finished difference. Result has 268 places, 252 transitions, 675 flow [2021-12-16 02:59:25,367 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=675, PETRI_PLACES=268, PETRI_TRANSITIONS=252} [2021-12-16 02:59:25,367 INFO L334 CegarLoopForPetriNet]: 226 programPoint places, 42 predicate places. [2021-12-16 02:59:25,367 INFO L470 AbstractCegarLoop]: Abstraction has has 268 places, 252 transitions, 675 flow [2021-12-16 02:59:25,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 221.75) internal successors, (1774), 8 states have internal predecessors, (1774), 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) [2021-12-16 02:59:25,368 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:25,368 INFO L254 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:59:25,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-16 02:59:25,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 02:59:25,584 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 02:59:25,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:25,584 INFO L85 PathProgramCache]: Analyzing trace with hash -430905277, now seen corresponding path program 4 times [2021-12-16 02:59:25,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:25,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222162556] [2021-12-16 02:59:25,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:25,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:25,646 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-16 02:59:25,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [76866615] [2021-12-16 02:59:25,647 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-16 02:59:25,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 02:59:25,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 02:59:25,648 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 02:59:25,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 02:59:26,281 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-16 02:59:26,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 02:59:26,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 3473 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 02:59:26,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 02:59:27,700 INFO L134 CoverageAnalysis]: Checked inductivity of 7883 backedges. 0 proven. 5526 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2021-12-16 02:59:27,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 02:59:29,017 INFO L134 CoverageAnalysis]: Checked inductivity of 7883 backedges. 0 proven. 5526 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2021-12-16 02:59:29,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:29,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222162556] [2021-12-16 02:59:29,018 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-16 02:59:29,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76866615] [2021-12-16 02:59:29,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76866615] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 02:59:29,019 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-16 02:59:29,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-12-16 02:59:29,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217549708] [2021-12-16 02:59:29,019 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-16 02:59:29,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-16 02:59:29,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:29,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-16 02:59:29,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-12-16 02:59:29,024 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 253 [2021-12-16 02:59:29,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 252 transitions, 675 flow. Second operand has 16 states, 16 states have (on average 222.375) internal successors, (3558), 16 states have internal predecessors, (3558), 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) [2021-12-16 02:59:29,027 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:29,027 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 253 [2021-12-16 02:59:29,027 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:29,683 INFO L129 PetriNetUnfolder]: 11/2108 cut-off events. [2021-12-16 02:59:29,683 INFO L130 PetriNetUnfolder]: For 346/346 co-relation queries the response was YES. [2021-12-16 02:59:29,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2823 conditions, 2108 events. 11/2108 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 169 event pairs, 0 based on Foata normal form. 4/2103 useless extension candidates. Maximal degree in co-relation 2806. Up to 70 conditions per place. [2021-12-16 02:59:29,689 INFO L132 encePairwiseOnDemand]: 247/253 looper letters, 40 selfloop transitions, 21 changer transitions 0/294 dead transitions. [2021-12-16 02:59:29,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 294 transitions, 941 flow [2021-12-16 02:59:29,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-16 02:59:29,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-12-16 02:59:29,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4664 transitions. [2021-12-16 02:59:29,696 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8778467908902692 [2021-12-16 02:59:29,697 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4664 transitions. [2021-12-16 02:59:29,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4664 transitions. [2021-12-16 02:59:29,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:29,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4664 transitions. [2021-12-16 02:59:29,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 222.0952380952381) internal successors, (4664), 21 states have internal predecessors, (4664), 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) [2021-12-16 02:59:29,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 253.0) internal successors, (5566), 22 states have internal predecessors, (5566), 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) [2021-12-16 02:59:29,725 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 253.0) internal successors, (5566), 22 states have internal predecessors, (5566), 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) [2021-12-16 02:59:29,725 INFO L186 Difference]: Start difference. First operand has 268 places, 252 transitions, 675 flow. Second operand 21 states and 4664 transitions. [2021-12-16 02:59:29,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 294 transitions, 941 flow [2021-12-16 02:59:29,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 294 transitions, 927 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-12-16 02:59:29,732 INFO L242 Difference]: Finished difference. Result has 292 places, 265 transitions, 799 flow [2021-12-16 02:59:29,732 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=799, PETRI_PLACES=292, PETRI_TRANSITIONS=265} [2021-12-16 02:59:29,733 INFO L334 CegarLoopForPetriNet]: 226 programPoint places, 66 predicate places. [2021-12-16 02:59:29,733 INFO L470 AbstractCegarLoop]: Abstraction has has 292 places, 265 transitions, 799 flow [2021-12-16 02:59:29,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 222.375) internal successors, (3558), 16 states have internal predecessors, (3558), 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) [2021-12-16 02:59:29,734 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:29,735 INFO L254 CegarLoopForPetriNet]: trace histogram [49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:59:29,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 02:59:29,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 02:59:29,964 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 02:59:29,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:29,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1522377795, now seen corresponding path program 5 times [2021-12-16 02:59:29,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:29,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790107018] [2021-12-16 02:59:29,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:29,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:30,156 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-16 02:59:30,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005011816] [2021-12-16 02:59:30,157 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-16 02:59:30,157 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 02:59:30,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 02:59:30,158 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 02:59:30,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process