./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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_93-evilcollapse_racefree.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 dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 15:14:05,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 15:14:05,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 15:14:06,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 15:14:06,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 15:14:06,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 15:14:06,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 15:14:06,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 15:14:06,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 15:14:06,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 15:14:06,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 15:14:06,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 15:14:06,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 15:14:06,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 15:14:06,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 15:14:06,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 15:14:06,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 15:14:06,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 15:14:06,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 15:14:06,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 15:14:06,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 15:14:06,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 15:14:06,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 15:14:06,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 15:14:06,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 15:14:06,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 15:14:06,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 15:14:06,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 15:14:06,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 15:14:06,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 15:14:06,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 15:14:06,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 15:14:06,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 15:14:06,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 15:14:06,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 15:14:06,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 15:14:06,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 15:14:06,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 15:14:06,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 15:14:06,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 15:14:06,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 15:14:06,056 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 15:14:06,085 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 15:14:06,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 15:14:06,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 15:14:06,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 15:14:06,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 15:14:06,087 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 15:14:06,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 15:14:06,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 15:14:06,088 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 15:14:06,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 15:14:06,089 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 15:14:06,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 15:14:06,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 15:14:06,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 15:14:06,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 15:14:06,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 15:14:06,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 15:14:06,090 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 15:14:06,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 15:14:06,090 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 15:14:06,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 15:14:06,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 15:14:06,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 15:14:06,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 15:14:06,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:14:06,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 15:14:06,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 15:14:06,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 15:14:06,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 15:14:06,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 15:14:06,093 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 15:14:06,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 15:14:06,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 15:14:06,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 15:14:06,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2021-12-21 15:14:06,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 15:14:06,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 15:14:06,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 15:14:06,304 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 15:14:06,304 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 15:14:06,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2021-12-21 15:14:06,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3033a49e3/e4a2633f1d8f49a4a2bf74aea24913d5/FLAGa46927c80 [2021-12-21 15:14:06,831 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 15:14:06,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2021-12-21 15:14:06,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3033a49e3/e4a2633f1d8f49a4a2bf74aea24913d5/FLAGa46927c80 [2021-12-21 15:14:06,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3033a49e3/e4a2633f1d8f49a4a2bf74aea24913d5 [2021-12-21 15:14:06,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 15:14:06,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 15:14:06,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 15:14:06,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 15:14:06,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 15:14:06,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:14:06" (1/1) ... [2021-12-21 15:14:06,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70134708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:14:06, skipping insertion in model container [2021-12-21 15:14:06,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:14:06" (1/1) ... [2021-12-21 15:14:06,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 15:14:06,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 15:14:07,215 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_93-evilcollapse_racefree.i[47038,47051] [2021-12-21 15:14:07,221 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-21 15:14:07,221 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-21 15:14:07,222 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-21 15:14:07,222 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-21 15:14:07,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:14:07,249 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 15:14:07,269 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_93-evilcollapse_racefree.i[47038,47051] [2021-12-21 15:14:07,276 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-21 15:14:07,276 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-21 15:14:07,276 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-21 15:14:07,276 WARN L1533 CHandler]: Possible shadowing of function new [2021-12-21 15:14:07,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:14:07,317 INFO L208 MainTranslator]: Completed translation [2021-12-21 15:14:07,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:14:07 WrapperNode [2021-12-21 15:14:07,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 15:14:07,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 15:14:07,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 15:14:07,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 15:14:07,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:14:07" (1/1) ... [2021-12-21 15:14:07,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:14:07" (1/1) ... [2021-12-21 15:14:07,355 INFO L137 Inliner]: procedures = 279, calls = 51, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 223 [2021-12-21 15:14:07,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 15:14:07,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 15:14:07,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 15:14:07,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 15:14:07,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:14:07" (1/1) ... [2021-12-21 15:14:07,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:14:07" (1/1) ... [2021-12-21 15:14:07,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:14:07" (1/1) ... [2021-12-21 15:14:07,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:14:07" (1/1) ... [2021-12-21 15:14:07,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:14:07" (1/1) ... [2021-12-21 15:14:07,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:14:07" (1/1) ... [2021-12-21 15:14:07,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:14:07" (1/1) ... [2021-12-21 15:14:07,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 15:14:07,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 15:14:07,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 15:14:07,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 15:14:07,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:14:07" (1/1) ... [2021-12-21 15:14:07,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:14:07,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:14:07,420 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) [2021-12-21 15:14:07,431 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 [2021-12-21 15:14:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 15:14:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 15:14:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 15:14:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 15:14:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 15:14:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-21 15:14:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 15:14:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 15:14:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 15:14:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-21 15:14:07,447 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-21 15:14:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 15:14:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 15:14:07,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 15:14:07,448 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-21 15:14:07,539 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 15:14:07,540 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 15:14:07,785 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 15:14:07,792 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 15:14:07,792 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-12-21 15:14:07,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:14:07 BoogieIcfgContainer [2021-12-21 15:14:07,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 15:14:07,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 15:14:07,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 15:14:07,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 15:14:07,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 03:14:06" (1/3) ... [2021-12-21 15:14:07,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7221c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:14:07, skipping insertion in model container [2021-12-21 15:14:07,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:14:07" (2/3) ... [2021-12-21 15:14:07,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7221c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:14:07, skipping insertion in model container [2021-12-21 15:14:07,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:14:07" (3/3) ... [2021-12-21 15:14:07,800 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2021-12-21 15:14:07,803 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-21 15:14:07,804 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 15:14:07,804 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 15:14:07,804 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-21 15:14:07,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,885 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,885 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,885 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,885 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,885 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,885 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,885 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,888 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,888 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,888 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,888 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,893 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,893 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,894 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,894 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,894 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,894 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,894 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,894 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,894 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,894 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,895 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,895 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,895 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,895 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,895 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,895 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,895 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,897 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,898 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,898 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,899 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,899 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,899 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,899 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,899 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,899 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,900 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,900 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,900 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,900 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,900 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,900 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,901 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,912 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,912 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,912 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,912 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,912 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,912 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,913 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,914 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:14:07,919 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-21 15:14:07,961 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:14:07,968 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 [2021-12-21 15:14:07,969 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 15:14:07,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 256 transitions, 520 flow [2021-12-21 15:14:08,059 INFO L129 PetriNetUnfolder]: 29/273 cut-off events. [2021-12-21 15:14:08,064 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2021-12-21 15:14:08,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 273 events. 29/273 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 583 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 155. Up to 4 conditions per place. [2021-12-21 15:14:08,072 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 256 transitions, 520 flow [2021-12-21 15:14:08,079 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 251 transitions, 507 flow [2021-12-21 15:14:08,107 INFO L129 PetriNetUnfolder]: 10/177 cut-off events. [2021-12-21 15:14:08,107 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-21 15:14:08,107 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:14:08,108 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] [2021-12-21 15:14:08,108 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:14:08,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:14:08,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1684978418, now seen corresponding path program 1 times [2021-12-21 15:14:08,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:14:08,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632951532] [2021-12-21 15:14:08,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:14:08,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:14:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:14:08,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 15:14:08,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:14:08,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632951532] [2021-12-21 15:14:08,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632951532] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:14:08,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:14:08,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 15:14:08,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817911028] [2021-12-21 15:14:08,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:14:08,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 15:14:08,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:14:08,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 15:14:08,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 15:14:08,348 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 256 [2021-12-21 15:14:08,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 251 transitions, 507 flow. Second operand has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 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) [2021-12-21 15:14:08,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:14:08,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 256 [2021-12-21 15:14:08,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:14:08,414 INFO L129 PetriNetUnfolder]: 6/245 cut-off events. [2021-12-21 15:14:08,414 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-21 15:14:08,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 245 events. 6/245 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 432 event pairs, 0 based on Foata normal form. 22/253 useless extension candidates. Maximal degree in co-relation 149. Up to 2 conditions per place. [2021-12-21 15:14:08,416 INFO L132 encePairwiseOnDemand]: 236/256 looper letters, 1 selfloop transitions, 0 changer transitions 2/230 dead transitions. [2021-12-21 15:14:08,416 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 230 transitions, 467 flow [2021-12-21 15:14:08,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 15:14:08,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-21 15:14:08,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 487 transitions. [2021-12-21 15:14:08,427 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.951171875 [2021-12-21 15:14:08,427 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 487 transitions. [2021-12-21 15:14:08,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 487 transitions. [2021-12-21 15:14:08,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:14:08,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 487 transitions. [2021-12-21 15:14:08,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 243.5) internal successors, (487), 2 states have internal predecessors, (487), 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) [2021-12-21 15:14:08,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 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) [2021-12-21 15:14:08,438 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 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) [2021-12-21 15:14:08,440 INFO L186 Difference]: Start difference. First operand has 228 places, 251 transitions, 507 flow. Second operand 2 states and 487 transitions. [2021-12-21 15:14:08,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 230 transitions, 467 flow [2021-12-21 15:14:08,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 230 transitions, 467 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-21 15:14:08,446 INFO L242 Difference]: Finished difference. Result has 228 places, 228 transitions, 461 flow [2021-12-21 15:14:08,448 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=461, PETRI_PLACES=228, PETRI_TRANSITIONS=228} [2021-12-21 15:14:08,450 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 0 predicate places. [2021-12-21 15:14:08,450 INFO L470 AbstractCegarLoop]: Abstraction has has 228 places, 228 transitions, 461 flow [2021-12-21 15:14:08,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 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) [2021-12-21 15:14:08,451 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:14:08,451 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] [2021-12-21 15:14:08,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 15:14:08,451 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:14:08,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:14:08,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1809051665, now seen corresponding path program 1 times [2021-12-21 15:14:08,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:14:08,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928919884] [2021-12-21 15:14:08,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:14:08,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:14:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:14:08,508 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 15:14:08,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:14:08,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928919884] [2021-12-21 15:14:08,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928919884] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:14:08,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:14:08,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 15:14:08,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659980188] [2021-12-21 15:14:08,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:14:08,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 15:14:08,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:14:08,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 15:14:08,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:14:08,512 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 256 [2021-12-21 15:14:08,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 228 transitions, 461 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) [2021-12-21 15:14:08,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:14:08,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 256 [2021-12-21 15:14:08,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:14:08,553 INFO L129 PetriNetUnfolder]: 7/293 cut-off events. [2021-12-21 15:14:08,554 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-21 15:14:08,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 293 events. 7/293 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 607 event pairs, 0 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 314. Up to 12 conditions per place. [2021-12-21 15:14:08,555 INFO L132 encePairwiseOnDemand]: 253/256 looper letters, 16 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2021-12-21 15:14:08,555 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 235 transitions, 511 flow [2021-12-21 15:14:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 15:14:08,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-21 15:14:08,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2021-12-21 15:14:08,558 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8958333333333334 [2021-12-21 15:14:08,558 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 688 transitions. [2021-12-21 15:14:08,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 688 transitions. [2021-12-21 15:14:08,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:14:08,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 688 transitions. [2021-12-21 15:14:08,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 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) [2021-12-21 15:14:08,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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) [2021-12-21 15:14:08,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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) [2021-12-21 15:14:08,562 INFO L186 Difference]: Start difference. First operand has 228 places, 228 transitions, 461 flow. Second operand 3 states and 688 transitions. [2021-12-21 15:14:08,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 235 transitions, 511 flow [2021-12-21 15:14:08,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 235 transitions, 511 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-21 15:14:08,567 INFO L242 Difference]: Finished difference. Result has 229 places, 229 transitions, 473 flow [2021-12-21 15:14:08,567 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=473, PETRI_PLACES=229, PETRI_TRANSITIONS=229} [2021-12-21 15:14:08,568 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 1 predicate places. [2021-12-21 15:14:08,568 INFO L470 AbstractCegarLoop]: Abstraction has has 229 places, 229 transitions, 473 flow [2021-12-21 15:14:08,569 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) [2021-12-21 15:14:08,569 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:14:08,569 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] [2021-12-21 15:14:08,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 15:14:08,569 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:14:08,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:14:08,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1280121739, now seen corresponding path program 1 times [2021-12-21 15:14:08,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:14:08,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457205216] [2021-12-21 15:14:08,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:14:08,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:14:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:14:08,650 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 15:14:08,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:14:08,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457205216] [2021-12-21 15:14:08,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457205216] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:14:08,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:14:08,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 15:14:08,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707953978] [2021-12-21 15:14:08,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:14:08,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 15:14:08,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:14:08,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 15:14:08,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:14:08,656 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 256 [2021-12-21 15:14:08,657 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 229 transitions, 473 flow. Second operand has 3 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) [2021-12-21 15:14:08,657 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:14:08,657 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 256 [2021-12-21 15:14:08,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:14:08,703 INFO L129 PetriNetUnfolder]: 7/365 cut-off events. [2021-12-21 15:14:08,703 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-21 15:14:08,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 365 events. 7/365 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 712 event pairs, 0 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 395. Up to 15 conditions per place. [2021-12-21 15:14:08,704 INFO L132 encePairwiseOnDemand]: 253/256 looper letters, 10 selfloop transitions, 2 changer transitions 0/233 dead transitions. [2021-12-21 15:14:08,704 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 233 transitions, 505 flow [2021-12-21 15:14:08,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 15:14:08,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-21 15:14:08,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 691 transitions. [2021-12-21 15:14:08,706 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8997395833333334 [2021-12-21 15:14:08,706 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 691 transitions. [2021-12-21 15:14:08,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 691 transitions. [2021-12-21 15:14:08,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:14:08,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 691 transitions. [2021-12-21 15:14:08,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 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) [2021-12-21 15:14:08,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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) [2021-12-21 15:14:08,711 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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) [2021-12-21 15:14:08,711 INFO L186 Difference]: Start difference. First operand has 229 places, 229 transitions, 473 flow. Second operand 3 states and 691 transitions. [2021-12-21 15:14:08,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 233 transitions, 505 flow [2021-12-21 15:14:08,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 233 transitions, 503 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-21 15:14:08,715 INFO L242 Difference]: Finished difference. Result has 231 places, 230 transitions, 483 flow [2021-12-21 15:14:08,715 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=483, PETRI_PLACES=231, PETRI_TRANSITIONS=230} [2021-12-21 15:14:08,717 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 3 predicate places. [2021-12-21 15:14:08,717 INFO L470 AbstractCegarLoop]: Abstraction has has 231 places, 230 transitions, 483 flow [2021-12-21 15:14:08,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2021-12-21 15:14:08,718 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:14:08,718 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] [2021-12-21 15:14:08,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 15:14:08,719 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:14:08,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:14:08,720 INFO L85 PathProgramCache]: Analyzing trace with hash 2086167297, now seen corresponding path program 1 times [2021-12-21 15:14:08,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:14:08,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731016550] [2021-12-21 15:14:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:14:08,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:14:08,767 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 15:14:08,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018111026] [2021-12-21 15:14:08,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:14:08,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:14:08,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:14:08,769 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) [2021-12-21 15:14:08,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 15:14:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:14:08,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 15:14:08,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:14:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 15:14:09,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 15:14:09,337 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 15:14:09,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:14:09,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731016550] [2021-12-21 15:14:09,338 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 15:14:09,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018111026] [2021-12-21 15:14:09,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018111026] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 15:14:09,338 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-21 15:14:09,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-21 15:14:09,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59022263] [2021-12-21 15:14:09,339 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-21 15:14:09,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 15:14:09,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:14:09,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 15:14:09,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-21 15:14:09,342 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 256 [2021-12-21 15:14:09,344 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 230 transitions, 483 flow. Second operand has 8 states, 8 states have (on average 227.0) internal successors, (1816), 8 states have internal predecessors, (1816), 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) [2021-12-21 15:14:09,344 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:14:09,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 256 [2021-12-21 15:14:09,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:14:09,422 INFO L129 PetriNetUnfolder]: 7/443 cut-off events. [2021-12-21 15:14:09,422 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-12-21 15:14:09,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 443 events. 7/443 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 517 event pairs, 0 based on Foata normal form. 4/437 useless extension candidates. Maximal degree in co-relation 500. Up to 10 conditions per place. [2021-12-21 15:14:09,424 INFO L132 encePairwiseOnDemand]: 250/256 looper letters, 11 selfloop transitions, 9 changer transitions 0/240 dead transitions. [2021-12-21 15:14:09,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 240 transitions, 545 flow [2021-12-21 15:14:09,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 15:14:09,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-21 15:14:09,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2047 transitions. [2021-12-21 15:14:09,428 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8884548611111112 [2021-12-21 15:14:09,428 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2047 transitions. [2021-12-21 15:14:09,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2047 transitions. [2021-12-21 15:14:09,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:14:09,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2047 transitions. [2021-12-21 15:14:09,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 227.44444444444446) internal successors, (2047), 9 states have internal predecessors, (2047), 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) [2021-12-21 15:14:09,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 256.0) internal successors, (2560), 10 states have internal predecessors, (2560), 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) [2021-12-21 15:14:09,436 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 256.0) internal successors, (2560), 10 states have internal predecessors, (2560), 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) [2021-12-21 15:14:09,436 INFO L186 Difference]: Start difference. First operand has 231 places, 230 transitions, 483 flow. Second operand 9 states and 2047 transitions. [2021-12-21 15:14:09,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 240 transitions, 545 flow [2021-12-21 15:14:09,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 240 transitions, 543 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-21 15:14:09,440 INFO L242 Difference]: Finished difference. Result has 241 places, 236 transitions, 531 flow [2021-12-21 15:14:09,441 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=531, PETRI_PLACES=241, PETRI_TRANSITIONS=236} [2021-12-21 15:14:09,441 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 13 predicate places. [2021-12-21 15:14:09,441 INFO L470 AbstractCegarLoop]: Abstraction has has 241 places, 236 transitions, 531 flow [2021-12-21 15:14:09,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 227.0) internal successors, (1816), 8 states have internal predecessors, (1816), 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) [2021-12-21 15:14:09,443 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:14:09,443 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] [2021-12-21 15:14:09,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 15:14:09,661 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 [2021-12-21 15:14:09,661 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:14:09,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:14:09,662 INFO L85 PathProgramCache]: Analyzing trace with hash -216012479, now seen corresponding path program 2 times [2021-12-21 15:14:09,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:14:09,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247826650] [2021-12-21 15:14:09,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:14:09,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:14:09,739 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 15:14:09,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248841777] [2021-12-21 15:14:09,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 15:14:09,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:14:09,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:14:09,741 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) [2021-12-21 15:14:09,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 15:14:09,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-21 15:14:09,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 15:14:09,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 15:14:09,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:14:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 1 proven. 114 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 15:14:10,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 15:14:10,510 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 1 proven. 114 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 15:14:10,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:14:10,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247826650] [2021-12-21 15:14:10,511 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 15:14:10,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248841777] [2021-12-21 15:14:10,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248841777] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 15:14:10,512 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-21 15:14:10,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-12-21 15:14:10,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390445586] [2021-12-21 15:14:10,512 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-21 15:14:10,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-21 15:14:10,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:14:10,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-21 15:14:10,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-12-21 15:14:10,520 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 256 [2021-12-21 15:14:10,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 236 transitions, 531 flow. Second operand has 16 states, 16 states have (on average 227.25) internal successors, (3636), 16 states have internal predecessors, (3636), 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) [2021-12-21 15:14:10,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:14:10,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 256 [2021-12-21 15:14:10,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:14:10,763 INFO L129 PetriNetUnfolder]: 7/739 cut-off events. [2021-12-21 15:14:10,763 INFO L130 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2021-12-21 15:14:10,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 739 events. 7/739 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 517 event pairs, 0 based on Foata normal form. 8/737 useless extension candidates. Maximal degree in co-relation 930. Up to 22 conditions per place. [2021-12-21 15:14:10,765 INFO L132 encePairwiseOnDemand]: 250/256 looper letters, 19 selfloop transitions, 21 changer transitions 0/260 dead transitions. [2021-12-21 15:14:10,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 260 transitions, 719 flow [2021-12-21 15:14:10,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-21 15:14:10,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-12-21 15:14:10,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4769 transitions. [2021-12-21 15:14:10,772 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8870907738095238 [2021-12-21 15:14:10,772 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4769 transitions. [2021-12-21 15:14:10,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4769 transitions. [2021-12-21 15:14:10,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:14:10,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4769 transitions. [2021-12-21 15:14:10,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 227.0952380952381) internal successors, (4769), 21 states have internal predecessors, (4769), 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) [2021-12-21 15:14:10,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 256.0) internal successors, (5632), 22 states have internal predecessors, (5632), 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) [2021-12-21 15:14:10,787 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 256.0) internal successors, (5632), 22 states have internal predecessors, (5632), 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) [2021-12-21 15:14:10,787 INFO L186 Difference]: Start difference. First operand has 241 places, 236 transitions, 531 flow. Second operand 21 states and 4769 transitions. [2021-12-21 15:14:10,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 260 transitions, 719 flow [2021-12-21 15:14:10,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 260 transitions, 705 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-12-21 15:14:10,792 INFO L242 Difference]: Finished difference. Result has 265 places, 249 transitions, 655 flow [2021-12-21 15:14:10,793 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=525, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=655, PETRI_PLACES=265, PETRI_TRANSITIONS=249} [2021-12-21 15:14:10,793 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 37 predicate places. [2021-12-21 15:14:10,793 INFO L470 AbstractCegarLoop]: Abstraction has has 265 places, 249 transitions, 655 flow [2021-12-21 15:14:10,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 227.25) internal successors, (3636), 16 states have internal predecessors, (3636), 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) [2021-12-21 15:14:10,794 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:14:10,794 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] [2021-12-21 15:14:10,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-21 15:14:11,030 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 [2021-12-21 15:14:11,031 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:14:11,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:14:11,031 INFO L85 PathProgramCache]: Analyzing trace with hash -361462335, now seen corresponding path program 3 times [2021-12-21 15:14:11,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:14:11,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993273361] [2021-12-21 15:14:11,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:14:11,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:14:11,072 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 15:14:11,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473713178] [2021-12-21 15:14:11,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-21 15:14:11,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:14:11,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:14:11,073 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) [2021-12-21 15:14:11,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 15:14:11,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-21 15:14:11,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 15:14:11,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 15:14:11,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:14:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2021-12-21 15:14:11,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 15:14:12,188 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2021-12-21 15:14:12,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:14:12,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993273361] [2021-12-21 15:14:12,188 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 15:14:12,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473713178] [2021-12-21 15:14:12,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473713178] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 15:14:12,208 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-21 15:14:12,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-21 15:14:12,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494929400] [2021-12-21 15:14:12,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-21 15:14:12,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 15:14:12,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:14:12,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 15:14:12,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-21 15:14:12,210 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 256 [2021-12-21 15:14:12,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 249 transitions, 655 flow. Second operand has 8 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 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) [2021-12-21 15:14:12,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:14:12,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 256 [2021-12-21 15:14:12,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:14:12,433 INFO L129 PetriNetUnfolder]: 8/1015 cut-off events. [2021-12-21 15:14:12,434 INFO L130 PetriNetUnfolder]: For 113/113 co-relation queries the response was YES. [2021-12-21 15:14:12,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 1015 events. 8/1015 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 206 event pairs, 0 based on Foata normal form. 2/1007 useless extension candidates. Maximal degree in co-relation 1337. Up to 33 conditions per place. [2021-12-21 15:14:12,436 INFO L132 encePairwiseOnDemand]: 250/256 looper letters, 20 selfloop transitions, 9 changer transitions 0/265 dead transitions. [2021-12-21 15:14:12,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 265 transitions, 747 flow [2021-12-21 15:14:12,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 15:14:12,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-21 15:14:12,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2029 transitions. [2021-12-21 15:14:12,439 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8806423611111112 [2021-12-21 15:14:12,439 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2029 transitions. [2021-12-21 15:14:12,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2029 transitions. [2021-12-21 15:14:12,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:14:12,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2029 transitions. [2021-12-21 15:14:12,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 225.44444444444446) internal successors, (2029), 9 states have internal predecessors, (2029), 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) [2021-12-21 15:14:12,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 256.0) internal successors, (2560), 10 states have internal predecessors, (2560), 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) [2021-12-21 15:14:12,446 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 256.0) internal successors, (2560), 10 states have internal predecessors, (2560), 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) [2021-12-21 15:14:12,446 INFO L186 Difference]: Start difference. First operand has 265 places, 249 transitions, 655 flow. Second operand 9 states and 2029 transitions. [2021-12-21 15:14:12,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 265 transitions, 747 flow [2021-12-21 15:14:12,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 265 transitions, 723 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-12-21 15:14:12,451 INFO L242 Difference]: Finished difference. Result has 270 places, 255 transitions, 681 flow [2021-12-21 15:14:12,452 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=681, PETRI_PLACES=270, PETRI_TRANSITIONS=255} [2021-12-21 15:14:12,452 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 42 predicate places. [2021-12-21 15:14:12,452 INFO L470 AbstractCegarLoop]: Abstraction has has 270 places, 255 transitions, 681 flow [2021-12-21 15:14:12,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 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) [2021-12-21 15:14:12,453 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:14:12,453 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] [2021-12-21 15:14:12,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-21 15:14:12,683 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 [2021-12-21 15:14:12,686 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:14:12,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:14:12,686 INFO L85 PathProgramCache]: Analyzing trace with hash -165335103, now seen corresponding path program 4 times [2021-12-21 15:14:12,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:14:12,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443569293] [2021-12-21 15:14:12,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:14:12,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:14:12,783 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 15:14:12,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [127822891] [2021-12-21 15:14:12,783 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-21 15:14:12,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:14:12,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:14:12,784 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) [2021-12-21 15:14:12,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-21 15:14:13,522 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-21 15:14:13,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 15:14:13,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 3419 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 15:14:13,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:14:15,112 INFO L134 CoverageAnalysis]: Checked inductivity of 7883 backedges. 0 proven. 5526 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2021-12-21 15:14:15,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 15:14:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 7883 backedges. 0 proven. 5526 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2021-12-21 15:14:16,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:14:16,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443569293] [2021-12-21 15:14:16,291 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 15:14:16,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127822891] [2021-12-21 15:14:16,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127822891] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 15:14:16,292 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-21 15:14:16,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-12-21 15:14:16,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401657786] [2021-12-21 15:14:16,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-21 15:14:16,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-21 15:14:16,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:14:16,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-21 15:14:16,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-12-21 15:14:16,308 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 256 [2021-12-21 15:14:16,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 255 transitions, 681 flow. Second operand has 16 states, 16 states have (on average 225.375) internal successors, (3606), 16 states have internal predecessors, (3606), 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) [2021-12-21 15:14:16,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:14:16,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 256 [2021-12-21 15:14:16,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:14:17,051 INFO L129 PetriNetUnfolder]: 12/2111 cut-off events. [2021-12-21 15:14:17,051 INFO L130 PetriNetUnfolder]: For 346/346 co-relation queries the response was YES. [2021-12-21 15:14:17,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2826 conditions, 2111 events. 12/2111 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 210 event pairs, 0 based on Foata normal form. 4/2105 useless extension candidates. Maximal degree in co-relation 2809. Up to 70 conditions per place. [2021-12-21 15:14:17,059 INFO L132 encePairwiseOnDemand]: 250/256 looper letters, 40 selfloop transitions, 21 changer transitions 0/297 dead transitions. [2021-12-21 15:14:17,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 297 transitions, 947 flow [2021-12-21 15:14:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-21 15:14:17,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-12-21 15:14:17,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4727 transitions. [2021-12-21 15:14:17,066 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8792782738095238 [2021-12-21 15:14:17,067 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4727 transitions. [2021-12-21 15:14:17,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4727 transitions. [2021-12-21 15:14:17,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:14:17,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4727 transitions. [2021-12-21 15:14:17,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 225.0952380952381) internal successors, (4727), 21 states have internal predecessors, (4727), 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) [2021-12-21 15:14:17,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 256.0) internal successors, (5632), 22 states have internal predecessors, (5632), 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) [2021-12-21 15:14:17,094 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 256.0) internal successors, (5632), 22 states have internal predecessors, (5632), 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) [2021-12-21 15:14:17,094 INFO L186 Difference]: Start difference. First operand has 270 places, 255 transitions, 681 flow. Second operand 21 states and 4727 transitions. [2021-12-21 15:14:17,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 297 transitions, 947 flow [2021-12-21 15:14:17,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 297 transitions, 933 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-12-21 15:14:17,103 INFO L242 Difference]: Finished difference. Result has 294 places, 268 transitions, 805 flow [2021-12-21 15:14:17,103 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=675, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=805, PETRI_PLACES=294, PETRI_TRANSITIONS=268} [2021-12-21 15:14:17,104 INFO L334 CegarLoopForPetriNet]: 228 programPoint places, 66 predicate places. [2021-12-21 15:14:17,104 INFO L470 AbstractCegarLoop]: Abstraction has has 294 places, 268 transitions, 805 flow [2021-12-21 15:14:17,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 225.375) internal successors, (3606), 16 states have internal predecessors, (3606), 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) [2021-12-21 15:14:17,105 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:14:17,105 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] [2021-12-21 15:14:17,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-21 15:14:17,324 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 [2021-12-21 15:14:17,325 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:14:17,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:14:17,325 INFO L85 PathProgramCache]: Analyzing trace with hash 178717633, now seen corresponding path program 5 times [2021-12-21 15:14:17,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:14:17,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608001465] [2021-12-21 15:14:17,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:14:17,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:14:17,528 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 15:14:17,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [126179119] [2021-12-21 15:14:17,529 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-21 15:14:17,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:14:17,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:14:17,530 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) [2021-12-21 15:14:17,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process