./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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/uthash-2.0.2/uthash_SFH_test1-2.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 1447114af8a4b489e3ec713f117f7a92d9cc93e5175903910b61bfe512c41aed --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 16:29:56,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 16:29:56,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 16:29:56,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 16:29:56,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 16:29:56,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 16:29:56,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 16:29:56,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 16:29:56,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 16:29:56,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 16:29:56,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 16:29:56,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 16:29:56,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 16:29:56,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 16:29:56,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 16:29:56,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 16:29:56,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 16:29:56,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 16:29:56,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 16:29:56,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 16:29:56,327 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 16:29:56,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 16:29:56,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 16:29:56,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 16:29:56,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 16:29:56,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 16:29:56,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 16:29:56,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 16:29:56,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 16:29:56,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 16:29:56,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 16:29:56,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 16:29:56,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 16:29:56,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 16:29:56,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 16:29:56,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 16:29:56,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 16:29:56,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 16:29:56,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 16:29:56,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 16:29:56,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 16:29:56,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 16:29:56,343 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 16:29:56,379 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 16:29:56,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 16:29:56,379 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 16:29:56,380 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 16:29:56,380 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 16:29:56,381 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 16:29:56,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 16:29:56,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 16:29:56,381 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 16:29:56,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 16:29:56,382 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 16:29:56,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 16:29:56,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 16:29:56,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 16:29:56,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 16:29:56,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 16:29:56,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 16:29:56,383 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 16:29:56,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 16:29:56,384 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 16:29:56,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 16:29:56,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 16:29:56,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 16:29:56,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 16:29:56,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 16:29:56,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 16:29:56,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 16:29:56,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 16:29:56,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 16:29:56,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 16:29:56,385 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 16:29:56,385 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 16:29:56,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 16:29:56,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1447114af8a4b489e3ec713f117f7a92d9cc93e5175903910b61bfe512c41aed [2022-07-21 16:29:56,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 16:29:56,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 16:29:56,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 16:29:56,669 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 16:29:56,669 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 16:29:56,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i [2022-07-21 16:29:56,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81259a4fb/e16e4557e1e949b1ab65a6e020b905cf/FLAGb19dad227 [2022-07-21 16:29:57,209 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 16:29:57,209 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i [2022-07-21 16:29:57,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81259a4fb/e16e4557e1e949b1ab65a6e020b905cf/FLAGb19dad227 [2022-07-21 16:29:57,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81259a4fb/e16e4557e1e949b1ab65a6e020b905cf [2022-07-21 16:29:57,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 16:29:57,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 16:29:57,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 16:29:57,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 16:29:57,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 16:29:57,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:29:57" (1/1) ... [2022-07-21 16:29:57,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@179c3964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:29:57, skipping insertion in model container [2022-07-21 16:29:57,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:29:57" (1/1) ... [2022-07-21 16:29:57,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 16:29:57,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 16:29:57,859 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/uthash-2.0.2/uthash_SFH_test1-2.i[33021,33034] [2022-07-21 16:29:57,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 16:29:57,919 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 16:29:57,938 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/uthash-2.0.2/uthash_SFH_test1-2.i[33021,33034] [2022-07-21 16:29:57,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 16:29:58,015 INFO L208 MainTranslator]: Completed translation [2022-07-21 16:29:58,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:29:58 WrapperNode [2022-07-21 16:29:58,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 16:29:58,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 16:29:58,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 16:29:58,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 16:29:58,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:29:58" (1/1) ... [2022-07-21 16:29:58,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:29:58" (1/1) ... [2022-07-21 16:29:58,113 INFO L137 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 776 [2022-07-21 16:29:58,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 16:29:58,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 16:29:58,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 16:29:58,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 16:29:58,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:29:58" (1/1) ... [2022-07-21 16:29:58,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:29:58" (1/1) ... [2022-07-21 16:29:58,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:29:58" (1/1) ... [2022-07-21 16:29:58,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:29:58" (1/1) ... [2022-07-21 16:29:58,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:29:58" (1/1) ... [2022-07-21 16:29:58,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:29:58" (1/1) ... [2022-07-21 16:29:58,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:29:58" (1/1) ... [2022-07-21 16:29:58,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 16:29:58,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 16:29:58,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 16:29:58,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 16:29:58,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:29:58" (1/1) ... [2022-07-21 16:29:58,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 16:29:58,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 16:29:58,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 16:29:58,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 16:29:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 16:29:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-21 16:29:58,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-21 16:29:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 16:29:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 16:29:58,285 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 16:29:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 16:29:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 16:29:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 16:29:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 16:29:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 16:29:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 16:29:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 16:29:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 16:29:58,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 16:29:58,469 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 16:29:58,470 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 16:29:59,202 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 16:29:59,209 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 16:29:59,209 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2022-07-21 16:29:59,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:29:59 BoogieIcfgContainer [2022-07-21 16:29:59,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 16:29:59,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 16:29:59,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 16:29:59,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 16:29:59,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:29:57" (1/3) ... [2022-07-21 16:29:59,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26803037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:29:59, skipping insertion in model container [2022-07-21 16:29:59,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:29:58" (2/3) ... [2022-07-21 16:29:59,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26803037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:29:59, skipping insertion in model container [2022-07-21 16:29:59,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:29:59" (3/3) ... [2022-07-21 16:29:59,217 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test1-2.i [2022-07-21 16:29:59,229 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 16:29:59,230 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 16:29:59,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 16:29:59,276 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3f64040a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7ab9eda4 [2022-07-21 16:29:59,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 16:29:59,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 140 states have (on average 1.6714285714285715) internal successors, (234), 151 states have internal predecessors, (234), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-21 16:29:59,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-21 16:29:59,289 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 16:29:59,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 16:29:59,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 16:29:59,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 16:29:59,296 INFO L85 PathProgramCache]: Analyzing trace with hash -384684060, now seen corresponding path program 1 times [2022-07-21 16:29:59,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 16:29:59,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703549691] [2022-07-21 16:29:59,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 16:29:59,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 16:29:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 16:29:59,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 16:29:59,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 16:29:59,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703549691] [2022-07-21 16:29:59,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703549691] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 16:29:59,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 16:29:59,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 16:29:59,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159116864] [2022-07-21 16:29:59,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 16:29:59,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 16:29:59,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 16:29:59,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 16:29:59,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 16:29:59,471 INFO L87 Difference]: Start difference. First operand has 157 states, 140 states have (on average 1.6714285714285715) internal successors, (234), 151 states have internal predecessors, (234), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 16:29:59,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 16:29:59,542 INFO L93 Difference]: Finished difference Result 399 states and 677 transitions. [2022-07-21 16:29:59,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 16:29:59,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-21 16:29:59,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 16:29:59,560 INFO L225 Difference]: With dead ends: 399 [2022-07-21 16:29:59,560 INFO L226 Difference]: Without dead ends: 211 [2022-07-21 16:29:59,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 16:29:59,578 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 107 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 16:29:59,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 425 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 16:29:59,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-07-21 16:29:59,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 125. [2022-07-21 16:29:59,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 109 states have (on average 1.3394495412844036) internal successors, (146), 119 states have internal predecessors, (146), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-21 16:29:59,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 172 transitions. [2022-07-21 16:29:59,636 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 172 transitions. Word has length 10 [2022-07-21 16:29:59,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 16:29:59,637 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 172 transitions. [2022-07-21 16:29:59,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 16:29:59,638 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 172 transitions. [2022-07-21 16:29:59,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-21 16:29:59,641 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 16:29:59,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 16:29:59,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 16:29:59,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 16:29:59,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 16:29:59,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1579896873, now seen corresponding path program 1 times [2022-07-21 16:29:59,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 16:29:59,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374281] [2022-07-21 16:29:59,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 16:29:59,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 16:29:59,797 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 16:29:59,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757970806] [2022-07-21 16:29:59,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 16:29:59,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 16:29:59,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 16:29:59,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 16:29:59,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 16:30:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 16:30:00,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 16:30:00,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 16:30:00,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 16:30:00,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 16:30:00,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 16:30:00,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374281] [2022-07-21 16:30:00,368 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 16:30:00,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757970806] [2022-07-21 16:30:00,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757970806] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 16:30:00,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 16:30:00,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 16:30:00,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281693304] [2022-07-21 16:30:00,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 16:30:00,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 16:30:00,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 16:30:00,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 16:30:00,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 16:30:00,384 INFO L87 Difference]: Start difference. First operand 125 states and 172 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 16:30:00,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 16:30:00,469 INFO L93 Difference]: Finished difference Result 268 states and 372 transitions. [2022-07-21 16:30:00,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 16:30:00,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-07-21 16:30:00,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 16:30:00,476 INFO L225 Difference]: With dead ends: 268 [2022-07-21 16:30:00,476 INFO L226 Difference]: Without dead ends: 146 [2022-07-21 16:30:00,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 16:30:00,479 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 9 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 16:30:00,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 287 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 16:30:00,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-07-21 16:30:00,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 145. [2022-07-21 16:30:00,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 129 states have (on average 1.2868217054263567) internal successors, (166), 139 states have internal predecessors, (166), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-21 16:30:00,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 192 transitions. [2022-07-21 16:30:00,495 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 192 transitions. Word has length 61 [2022-07-21 16:30:00,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 16:30:00,495 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 192 transitions. [2022-07-21 16:30:00,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 16:30:00,496 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 192 transitions. [2022-07-21 16:30:00,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-21 16:30:00,501 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 16:30:00,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 16:30:00,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-21 16:30:00,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 16:30:00,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 16:30:00,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 16:30:00,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1226808491, now seen corresponding path program 1 times [2022-07-21 16:30:00,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 16:30:00,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780599099] [2022-07-21 16:30:00,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 16:30:00,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 16:30:00,803 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 16:30:00,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1811110723] [2022-07-21 16:30:00,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 16:30:00,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 16:30:00,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 16:30:00,806 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 16:30:00,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 16:30:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 16:30:01,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 16:30:01,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 16:30:01,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 16:30:01,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 16:30:01,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 16:30:01,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780599099] [2022-07-21 16:30:01,345 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 16:30:01,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811110723] [2022-07-21 16:30:01,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811110723] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 16:30:01,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 16:30:01,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 16:30:01,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417873273] [2022-07-21 16:30:01,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 16:30:01,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 16:30:01,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 16:30:01,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 16:30:01,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 16:30:01,347 INFO L87 Difference]: Start difference. First operand 145 states and 192 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 16:30:01,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 16:30:01,399 INFO L93 Difference]: Finished difference Result 279 states and 373 transitions. [2022-07-21 16:30:01,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 16:30:01,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-07-21 16:30:01,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 16:30:01,400 INFO L225 Difference]: With dead ends: 279 [2022-07-21 16:30:01,401 INFO L226 Difference]: Without dead ends: 137 [2022-07-21 16:30:01,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 16:30:01,402 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 124 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 16:30:01,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 317 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 16:30:01,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-07-21 16:30:01,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 131. [2022-07-21 16:30:01,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 115 states have (on average 1.2608695652173914) internal successors, (145), 125 states have internal predecessors, (145), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-21 16:30:01,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 171 transitions. [2022-07-21 16:30:01,409 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 171 transitions. Word has length 61 [2022-07-21 16:30:01,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 16:30:01,410 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 171 transitions. [2022-07-21 16:30:01,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 16:30:01,410 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 171 transitions. [2022-07-21 16:30:01,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-21 16:30:01,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 16:30:01,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 16:30:01,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-21 16:30:01,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-21 16:30:01,635 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 16:30:01,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 16:30:01,635 INFO L85 PathProgramCache]: Analyzing trace with hash -754661789, now seen corresponding path program 1 times [2022-07-21 16:30:01,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 16:30:01,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118523193] [2022-07-21 16:30:01,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 16:30:01,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 16:30:01,708 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 16:30:01,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453380023] [2022-07-21 16:30:01,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 16:30:01,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 16:30:01,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 16:30:01,710 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 16:30:01,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 16:30:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 16:30:02,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 1533 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 16:30:02,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 16:30:02,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 16:30:02,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 16:30:02,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 16:30:02,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 16:30:02,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118523193] [2022-07-21 16:30:02,484 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 16:30:02,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453380023] [2022-07-21 16:30:02,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453380023] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 16:30:02,484 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 16:30:02,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-21 16:30:02,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316086596] [2022-07-21 16:30:02,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 16:30:02,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 16:30:02,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 16:30:02,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 16:30:02,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-21 16:30:02,487 INFO L87 Difference]: Start difference. First operand 131 states and 171 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 16:30:02,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 16:30:02,538 INFO L93 Difference]: Finished difference Result 441 states and 563 transitions. [2022-07-21 16:30:02,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 16:30:02,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-07-21 16:30:02,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 16:30:02,542 INFO L225 Difference]: With dead ends: 441 [2022-07-21 16:30:02,543 INFO L226 Difference]: Without dead ends: 410 [2022-07-21 16:30:02,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-21 16:30:02,545 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 400 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 16:30:02,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 730 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 16:30:02,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-07-21 16:30:02,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2022-07-21 16:30:02,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 385 states have (on average 1.2103896103896103) internal successors, (466), 395 states have internal predecessors, (466), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-21 16:30:02,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 510 transitions. [2022-07-21 16:30:02,562 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 510 transitions. Word has length 61 [2022-07-21 16:30:02,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 16:30:02,563 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 510 transitions. [2022-07-21 16:30:02,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 16:30:02,564 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 510 transitions. [2022-07-21 16:30:02,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-21 16:30:02,567 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 16:30:02,570 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 16:30:02,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 16:30:02,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 16:30:02,784 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 16:30:02,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 16:30:02,784 INFO L85 PathProgramCache]: Analyzing trace with hash -184966364, now seen corresponding path program 2 times [2022-07-21 16:30:02,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 16:30:02,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874689504] [2022-07-21 16:30:02,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 16:30:02,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 16:30:03,095 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 16:30:03,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1515284258] [2022-07-21 16:30:03,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 16:30:03,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 16:30:03,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 16:30:03,097 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) [2022-07-21 16:30:03,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 16:30:03,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 16:30:03,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 16:30:03,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 16:30:03,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 16:30:04,439 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-07-21 16:30:04,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 16:30:04,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 16:30:04,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874689504] [2022-07-21 16:30:04,440 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 16:30:04,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515284258] [2022-07-21 16:30:04,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515284258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 16:30:04,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 16:30:04,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 16:30:04,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315044906] [2022-07-21 16:30:04,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 16:30:04,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 16:30:04,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 16:30:04,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 16:30:04,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 16:30:04,442 INFO L87 Difference]: Start difference. First operand 410 states and 510 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 16:30:04,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 16:30:04,594 INFO L93 Difference]: Finished difference Result 762 states and 954 transitions. [2022-07-21 16:30:04,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 16:30:04,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2022-07-21 16:30:04,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 16:30:04,596 INFO L225 Difference]: With dead ends: 762 [2022-07-21 16:30:04,597 INFO L226 Difference]: Without dead ends: 408 [2022-07-21 16:30:04,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 16:30:04,598 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 15 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 16:30:04,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 440 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 16:30:04,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-07-21 16:30:04,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2022-07-21 16:30:04,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 383 states have (on average 1.2088772845953002) internal successors, (463), 393 states have internal predecessors, (463), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-21 16:30:04,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 507 transitions. [2022-07-21 16:30:04,609 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 507 transitions. Word has length 214 [2022-07-21 16:30:04,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 16:30:04,609 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 507 transitions. [2022-07-21 16:30:04,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 16:30:04,609 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 507 transitions. [2022-07-21 16:30:04,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-21 16:30:04,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 16:30:04,611 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-07-21 16:30:04,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 16:30:04,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 16:30:04,826 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 16:30:04,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 16:30:04,826 INFO L85 PathProgramCache]: Analyzing trace with hash 242018053, now seen corresponding path program 1 times [2022-07-21 16:30:04,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 16:30:04,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094202092] [2022-07-21 16:30:04,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 16:30:04,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 16:30:05,064 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 16:30:05,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1845573306] [2022-07-21 16:30:05,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 16:30:05,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 16:30:05,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 16:30:05,067 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) [2022-07-21 16:30:05,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 16:30:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 16:30:06,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 5083 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 16:30:06,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 16:30:07,018 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 304 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-21 16:30:07,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 16:30:07,305 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 304 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-21 16:30:07,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 16:30:07,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094202092] [2022-07-21 16:30:07,306 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 16:30:07,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845573306] [2022-07-21 16:30:07,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845573306] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 16:30:07,306 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 16:30:07,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-07-21 16:30:07,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234716420] [2022-07-21 16:30:07,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 16:30:07,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 16:30:07,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 16:30:07,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 16:30:07,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-21 16:30:07,308 INFO L87 Difference]: Start difference. First operand 408 states and 507 transitions. Second operand has 12 states, 12 states have (on average 36.0) internal successors, (432), 12 states have internal predecessors, (432), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 16:30:07,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 16:30:07,521 INFO L93 Difference]: Finished difference Result 997 states and 1241 transitions. [2022-07-21 16:30:07,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 16:30:07,522 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 36.0) internal successors, (432), 12 states have internal predecessors, (432), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 229 [2022-07-21 16:30:07,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 16:30:07,525 INFO L225 Difference]: With dead ends: 997 [2022-07-21 16:30:07,526 INFO L226 Difference]: Without dead ends: 966 [2022-07-21 16:30:07,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-21 16:30:07,527 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1375 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 16:30:07,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 1316 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 16:30:07,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-07-21 16:30:07,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2022-07-21 16:30:07,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 923 states have (on average 1.1971830985915493) internal successors, (1105), 933 states have internal predecessors, (1105), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 31 states have call predecessors, (40), 40 states have call successors, (40) [2022-07-21 16:30:07,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1185 transitions. [2022-07-21 16:30:07,545 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1185 transitions. Word has length 229 [2022-07-21 16:30:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 16:30:07,545 INFO L495 AbstractCegarLoop]: Abstraction has 966 states and 1185 transitions. [2022-07-21 16:30:07,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 36.0) internal successors, (432), 12 states have internal predecessors, (432), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 16:30:07,546 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1185 transitions. [2022-07-21 16:30:07,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2022-07-21 16:30:07,551 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 16:30:07,552 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2022-07-21 16:30:07,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 16:30:07,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 16:30:07,775 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 16:30:07,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 16:30:07,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1948759461, now seen corresponding path program 2 times [2022-07-21 16:30:07,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 16:30:07,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595716672] [2022-07-21 16:30:07,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 16:30:07,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 16:30:08,319 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 16:30:08,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [438492650] [2022-07-21 16:30:08,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 16:30:08,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 16:30:08,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 16:30:08,321 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 16:30:08,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process