./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--digi_acceleport.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--digi_acceleport.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 9e49a1360829f26f8d048b65d36d4ec5c4a8326faf8d0f409c04195556886603 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 17:58:49,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 17:58:49,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 17:58:49,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 17:58:49,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 17:58:49,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 17:58:49,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 17:58:49,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 17:58:49,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 17:58:49,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 17:58:49,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 17:58:49,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 17:58:49,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 17:58:49,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 17:58:49,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 17:58:49,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 17:58:49,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 17:58:49,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 17:58:49,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 17:58:49,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 17:58:49,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 17:58:49,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 17:58:49,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 17:58:49,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 17:58:49,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 17:58:49,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 17:58:49,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 17:58:49,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 17:58:49,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 17:58:49,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 17:58:49,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 17:58:49,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 17:58:49,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 17:58:49,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 17:58:49,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 17:58:49,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 17:58:49,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 17:58:49,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 17:58:49,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 17:58:49,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 17:58:49,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 17:58:49,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 17:58:49,848 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 17:58:49,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 17:58:49,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 17:58:49,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 17:58:49,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 17:58:49,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 17:58:49,850 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 17:58:49,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 17:58:49,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 17:58:49,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 17:58:49,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 17:58:49,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 17:58:49,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 17:58:49,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 17:58:49,852 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 17:58:49,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 17:58:49,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 17:58:49,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 17:58:49,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 17:58:49,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:58:49,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 17:58:49,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 17:58:49,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 17:58:49,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 17:58:49,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 17:58:49,854 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 17:58:49,854 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 17:58:49,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 17:58:49,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 17:58:49,856 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e49a1360829f26f8d048b65d36d4ec5c4a8326faf8d0f409c04195556886603 [2021-11-06 17:58:50,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 17:58:50,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 17:58:50,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 17:58:50,063 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 17:58:50,064 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 17:58:50,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--digi_acceleport.ko-entry_point.cil.out.i [2021-11-06 17:58:50,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7fa9368e/a8212ddd16204132a7166bdb8500fdf7/FLAG079401810 [2021-11-06 17:58:50,611 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 17:58:50,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--digi_acceleport.ko-entry_point.cil.out.i [2021-11-06 17:58:50,648 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7fa9368e/a8212ddd16204132a7166bdb8500fdf7/FLAG079401810 [2021-11-06 17:58:50,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7fa9368e/a8212ddd16204132a7166bdb8500fdf7 [2021-11-06 17:58:50,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 17:58:50,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 17:58:50,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 17:58:50,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 17:58:50,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 17:58:50,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:58:50" (1/1) ... [2021-11-06 17:58:50,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3237253b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:58:50, skipping insertion in model container [2021-11-06 17:58:50,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:58:50" (1/1) ... [2021-11-06 17:58:50,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 17:58:50,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 17:58:51,911 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--digi_acceleport.ko-entry_point.cil.out.i[215646,215659] [2021-11-06 17:58:51,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:58:51,962 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 17:58:52,157 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--digi_acceleport.ko-entry_point.cil.out.i[215646,215659] [2021-11-06 17:58:52,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:58:52,202 INFO L208 MainTranslator]: Completed translation [2021-11-06 17:58:52,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:58:52 WrapperNode [2021-11-06 17:58:52,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 17:58:52,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 17:58:52,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 17:58:52,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 17:58:52,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:58:52" (1/1) ... [2021-11-06 17:58:52,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:58:52" (1/1) ... [2021-11-06 17:58:52,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 17:58:52,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 17:58:52,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 17:58:52,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 17:58:52,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:58:52" (1/1) ... [2021-11-06 17:58:52,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:58:52" (1/1) ... [2021-11-06 17:58:53,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:58:52" (1/1) ... [2021-11-06 17:58:53,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:58:52" (1/1) ... [2021-11-06 17:58:53,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:58:52" (1/1) ... [2021-11-06 17:58:53,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:58:52" (1/1) ... [2021-11-06 17:58:53,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:58:52" (1/1) ... [2021-11-06 17:58:54,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 17:58:54,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 17:58:54,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 17:58:54,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 17:58:54,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:58:52" (1/1) ... [2021-11-06 17:58:54,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:58:54,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:58:54,247 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) [2021-11-06 17:58:54,252 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 [2021-11-06 17:58:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 17:58:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 17:58:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 17:58:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 17:58:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 17:58:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 17:58:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 17:58:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 17:58:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 17:58:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 17:58:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 17:58:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 17:58:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 17:58:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 17:58:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 17:58:54,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 17:59:33,464 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 17:59:33,464 INFO L299 CfgBuilder]: Removed 7369 assume(true) statements. [2021-11-06 17:59:33,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:59:33 BoogieIcfgContainer [2021-11-06 17:59:33,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 17:59:33,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 17:59:33,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 17:59:33,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 17:59:33,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 05:58:50" (1/3) ... [2021-11-06 17:59:33,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d826f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:59:33, skipping insertion in model container [2021-11-06 17:59:33,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:58:52" (2/3) ... [2021-11-06 17:59:33,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d826f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:59:33, skipping insertion in model container [2021-11-06 17:59:33,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:59:33" (3/3) ... [2021-11-06 17:59:33,502 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--serial--digi_acceleport.ko-entry_point.cil.out.i [2021-11-06 17:59:33,506 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 17:59:33,506 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 90 error locations. [2021-11-06 17:59:33,570 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 17:59:33,579 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 [2021-11-06 17:59:33,580 INFO L340 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2021-11-06 17:59:33,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 6108 states, 6017 states have (on average 1.4053515040717965) internal successors, (8456), 6107 states have internal predecessors, (8456), 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) [2021-11-06 17:59:33,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 17:59:33,650 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:59:33,651 INFO L513 BasicCegarLoop]: 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] [2021-11-06 17:59:33,651 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 87 more)] === [2021-11-06 17:59:33,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:59:33,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1066813544, now seen corresponding path program 1 times [2021-11-06 17:59:33,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:59:33,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053618852] [2021-11-06 17:59:33,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:59:33,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:59:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:59:34,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:59:34,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:59:34,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053618852] [2021-11-06 17:59:34,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053618852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:59:34,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:59:34,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:59:34,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252800393] [2021-11-06 17:59:34,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 17:59:34,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:59:34,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 17:59:34,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:59:34,169 INFO L87 Difference]: Start difference. First operand has 6108 states, 6017 states have (on average 1.4053515040717965) internal successors, (8456), 6107 states have internal predecessors, (8456), 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) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2021-11-06 17:59:34,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:59:34,346 INFO L93 Difference]: Finished difference Result 12212 states and 16907 transitions. [2021-11-06 17:59:34,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 17:59:34,348 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) Word has length 58 [2021-11-06 17:59:34,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:59:34,389 INFO L225 Difference]: With dead ends: 12212 [2021-11-06 17:59:34,390 INFO L226 Difference]: Without dead ends: 6098 [2021-11-06 17:59:34,407 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:59:34,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6098 states. [2021-11-06 17:59:34,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6098 to 6098. [2021-11-06 17:59:34,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6098 states, 6008 states have (on average 1.3751664447403462) internal successors, (8262), 6097 states have internal predecessors, (8262), 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) [2021-11-06 17:59:34,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6098 states to 6098 states and 8262 transitions. [2021-11-06 17:59:34,591 INFO L78 Accepts]: Start accepts. Automaton has 6098 states and 8262 transitions. Word has length 58 [2021-11-06 17:59:34,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:59:34,591 INFO L470 AbstractCegarLoop]: Abstraction has 6098 states and 8262 transitions. [2021-11-06 17:59:34,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2021-11-06 17:59:34,592 INFO L276 IsEmpty]: Start isEmpty. Operand 6098 states and 8262 transitions. [2021-11-06 17:59:34,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 17:59:34,598 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:59:34,598 INFO L513 BasicCegarLoop]: 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] [2021-11-06 17:59:34,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 17:59:34,599 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 87 more)] === [2021-11-06 17:59:34,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:59:34,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1335871392, now seen corresponding path program 1 times [2021-11-06 17:59:34,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:59:34,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992820968] [2021-11-06 17:59:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:59:34,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:59:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:59:34,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:59:34,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:59:34,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992820968] [2021-11-06 17:59:34,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992820968] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:59:34,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:59:34,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:59:34,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543171380] [2021-11-06 17:59:34,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:59:34,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:59:34,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:59:34,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:59:34,809 INFO L87 Difference]: Start difference. First operand 6098 states and 8262 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-06 17:59:35,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:59:35,273 INFO L93 Difference]: Finished difference Result 15074 states and 20446 transitions. [2021-11-06 17:59:35,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:59:35,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) Word has length 58 [2021-11-06 17:59:35,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:59:35,298 INFO L225 Difference]: With dead ends: 15074 [2021-11-06 17:59:35,299 INFO L226 Difference]: Without dead ends: 9023 [2021-11-06 17:59:35,308 INFO L786 BasicCegarLoop]: 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 [2021-11-06 17:59:35,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9023 states. [2021-11-06 17:59:35,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9023 to 8920. [2021-11-06 17:59:35,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8920 states, 8830 states have (on average 1.3792751981879954) internal successors, (12179), 8919 states have internal predecessors, (12179), 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) [2021-11-06 17:59:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8920 states to 8920 states and 12179 transitions. [2021-11-06 17:59:35,465 INFO L78 Accepts]: Start accepts. Automaton has 8920 states and 12179 transitions. Word has length 58 [2021-11-06 17:59:35,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:59:35,467 INFO L470 AbstractCegarLoop]: Abstraction has 8920 states and 12179 transitions. [2021-11-06 17:59:35,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-06 17:59:35,468 INFO L276 IsEmpty]: Start isEmpty. Operand 8920 states and 12179 transitions. [2021-11-06 17:59:35,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 17:59:35,468 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:59:35,469 INFO L513 BasicCegarLoop]: 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] [2021-11-06 17:59:35,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 17:59:35,469 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 87 more)] === [2021-11-06 17:59:35,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:59:35,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1283679648, now seen corresponding path program 1 times [2021-11-06 17:59:35,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:59:35,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523753077] [2021-11-06 17:59:35,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:59:35,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:59:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:59:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:59:35,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:59:35,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523753077] [2021-11-06 17:59:35,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523753077] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:59:35,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:59:35,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:59:35,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478100155] [2021-11-06 17:59:35,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:59:35,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:59:35,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:59:35,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:59:35,631 INFO L87 Difference]: Start difference. First operand 8920 states and 12179 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-06 17:59:36,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:59:36,107 INFO L93 Difference]: Finished difference Result 20997 states and 28647 transitions. [2021-11-06 17:59:36,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:59:36,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) Word has length 58 [2021-11-06 17:59:36,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:59:36,140 INFO L225 Difference]: With dead ends: 20997 [2021-11-06 17:59:36,141 INFO L226 Difference]: Without dead ends: 12124 [2021-11-06 17:59:36,154 INFO L786 BasicCegarLoop]: 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 [2021-11-06 17:59:36,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12124 states. [2021-11-06 17:59:36,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12124 to 12030. [2021-11-06 17:59:36,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12030 states, 11940 states have (on average 1.3798157453936348) internal successors, (16475), 12029 states have internal predecessors, (16475), 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) [2021-11-06 17:59:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12030 states to 12030 states and 16475 transitions. [2021-11-06 17:59:36,514 INFO L78 Accepts]: Start accepts. Automaton has 12030 states and 16475 transitions. Word has length 58 [2021-11-06 17:59:36,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:59:36,514 INFO L470 AbstractCegarLoop]: Abstraction has 12030 states and 16475 transitions. [2021-11-06 17:59:36,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-06 17:59:36,514 INFO L276 IsEmpty]: Start isEmpty. Operand 12030 states and 16475 transitions. [2021-11-06 17:59:36,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-06 17:59:36,515 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:59:36,515 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 17:59:36,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 17:59:36,516 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 87 more)] === [2021-11-06 17:59:36,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:59:36,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1717521715, now seen corresponding path program 1 times [2021-11-06 17:59:36,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:59:36,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489949257] [2021-11-06 17:59:36,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:59:36,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:59:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:59:36,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:59:36,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:59:36,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489949257] [2021-11-06 17:59:36,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489949257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:59:36,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:59:36,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:59:36,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191578934] [2021-11-06 17:59:36,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:59:36,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:59:36,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:59:36,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:59:36,667 INFO L87 Difference]: Start difference. First operand 12030 states and 16475 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-06 17:59:39,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:59:39,611 INFO L93 Difference]: Finished difference Result 27143 states and 37250 transitions. [2021-11-06 17:59:39,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:59:39,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) Word has length 102 [2021-11-06 17:59:39,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:59:39,654 INFO L225 Difference]: With dead ends: 27143 [2021-11-06 17:59:39,654 INFO L226 Difference]: Without dead ends: 15160 [2021-11-06 17:59:39,674 INFO L786 BasicCegarLoop]: 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 [2021-11-06 17:59:39,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15160 states. [2021-11-06 17:59:39,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15160 to 15057. [2021-11-06 17:59:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15057 states, 14967 states have (on average 1.3800360793746242) internal successors, (20655), 15056 states have internal predecessors, (20655), 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) [2021-11-06 17:59:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15057 states to 15057 states and 20655 transitions. [2021-11-06 17:59:39,932 INFO L78 Accepts]: Start accepts. Automaton has 15057 states and 20655 transitions. Word has length 102 [2021-11-06 17:59:39,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:59:39,934 INFO L470 AbstractCegarLoop]: Abstraction has 15057 states and 20655 transitions. [2021-11-06 17:59:39,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-06 17:59:39,934 INFO L276 IsEmpty]: Start isEmpty. Operand 15057 states and 20655 transitions. [2021-11-06 17:59:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-06 17:59:39,935 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:59:39,935 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 17:59:39,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 17:59:39,935 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 87 more)] === [2021-11-06 17:59:39,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:59:39,936 INFO L85 PathProgramCache]: Analyzing trace with hash -902029325, now seen corresponding path program 1 times [2021-11-06 17:59:39,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:59:39,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353230359] [2021-11-06 17:59:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:59:39,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:59:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:59:40,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:59:40,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:59:40,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353230359] [2021-11-06 17:59:40,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353230359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:59:40,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:59:40,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:59:40,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139239189] [2021-11-06 17:59:40,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:59:40,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:59:40,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:59:40,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:59:40,142 INFO L87 Difference]: Start difference. First operand 15057 states and 20655 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-06 17:59:43,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:59:43,057 INFO L93 Difference]: Finished difference Result 33619 states and 46202 transitions. [2021-11-06 17:59:43,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:59:43,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) Word has length 102 [2021-11-06 17:59:43,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:59:43,110 INFO L225 Difference]: With dead ends: 33619 [2021-11-06 17:59:43,110 INFO L226 Difference]: Without dead ends: 18609 [2021-11-06 17:59:43,133 INFO L786 BasicCegarLoop]: 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 [2021-11-06 17:59:43,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18609 states. [2021-11-06 17:59:43,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18609 to 18515. [2021-11-06 17:59:43,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18515 states, 18425 states have (on average 1.378236092265943) internal successors, (25394), 18514 states have internal predecessors, (25394), 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) [2021-11-06 17:59:43,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18515 states to 18515 states and 25394 transitions. [2021-11-06 17:59:43,430 INFO L78 Accepts]: Start accepts. Automaton has 18515 states and 25394 transitions. Word has length 102 [2021-11-06 17:59:43,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:59:43,431 INFO L470 AbstractCegarLoop]: Abstraction has 18515 states and 25394 transitions. [2021-11-06 17:59:43,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-06 17:59:43,431 INFO L276 IsEmpty]: Start isEmpty. Operand 18515 states and 25394 transitions. [2021-11-06 17:59:43,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-06 17:59:43,436 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:59:43,436 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:59:43,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 17:59:43,436 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 87 more)] === [2021-11-06 17:59:43,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:59:43,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1705476532, now seen corresponding path program 1 times [2021-11-06 17:59:43,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:59:43,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107288712] [2021-11-06 17:59:43,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:59:43,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:59:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:59:43,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 17:59:43,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:59:43,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107288712] [2021-11-06 17:59:43,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107288712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:59:43,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:59:43,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:59:43,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968567746] [2021-11-06 17:59:43,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:59:43,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:59:43,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:59:43,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:59:43,771 INFO L87 Difference]: Start difference. First operand 18515 states and 25394 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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) [2021-11-06 17:59:44,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:59:44,716 INFO L93 Difference]: Finished difference Result 18515 states and 25394 transitions. [2021-11-06 17:59:44,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:59:44,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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) Word has length 103 [2021-11-06 17:59:44,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:59:44,774 INFO L225 Difference]: With dead ends: 18515 [2021-11-06 17:59:44,775 INFO L226 Difference]: Without dead ends: 18483 [2021-11-06 17:59:44,783 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:59:44,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18483 states. [2021-11-06 17:59:45,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18483 to 18483. [2021-11-06 17:59:45,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18483 states, 18409 states have (on average 1.3759574121353686) internal successors, (25330), 18482 states have internal predecessors, (25330), 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) [2021-11-06 17:59:45,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18483 states to 18483 states and 25330 transitions. [2021-11-06 17:59:45,082 INFO L78 Accepts]: Start accepts. Automaton has 18483 states and 25330 transitions. Word has length 103 [2021-11-06 17:59:45,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:59:45,082 INFO L470 AbstractCegarLoop]: Abstraction has 18483 states and 25330 transitions. [2021-11-06 17:59:45,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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) [2021-11-06 17:59:45,083 INFO L276 IsEmpty]: Start isEmpty. Operand 18483 states and 25330 transitions. [2021-11-06 17:59:45,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-06 17:59:45,084 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:59:45,084 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 17:59:45,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 17:59:45,085 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 87 more)] === [2021-11-06 17:59:45,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:59:45,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1739797572, now seen corresponding path program 1 times [2021-11-06 17:59:45,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:59:45,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753776997] [2021-11-06 17:59:45,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:59:45,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:59:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:59:45,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 17:59:45,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:59:45,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753776997] [2021-11-06 17:59:45,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753776997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:59:45,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:59:45,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:59:45,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990879927] [2021-11-06 17:59:45,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:59:45,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:59:45,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:59:45,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:59:45,434 INFO L87 Difference]: Start difference. First operand 18483 states and 25330 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2021-11-06 17:59:45,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:59:45,744 INFO L93 Difference]: Finished difference Result 36955 states and 50657 transitions. [2021-11-06 17:59:45,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:59:45,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) Word has length 108 [2021-11-06 17:59:45,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:59:45,773 INFO L225 Difference]: With dead ends: 36955 [2021-11-06 17:59:45,773 INFO L226 Difference]: Without dead ends: 18492 [2021-11-06 17:59:45,796 INFO L786 BasicCegarLoop]: 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 [2021-11-06 17:59:45,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18492 states. [2021-11-06 17:59:45,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18492 to 18492. [2021-11-06 17:59:46,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18492 states, 18418 states have (on average 1.375773699641655) internal successors, (25339), 18491 states have internal predecessors, (25339), 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) [2021-11-06 17:59:46,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18492 states to 18492 states and 25339 transitions. [2021-11-06 17:59:46,039 INFO L78 Accepts]: Start accepts. Automaton has 18492 states and 25339 transitions. Word has length 108 [2021-11-06 17:59:46,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:59:46,040 INFO L470 AbstractCegarLoop]: Abstraction has 18492 states and 25339 transitions. [2021-11-06 17:59:46,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2021-11-06 17:59:46,040 INFO L276 IsEmpty]: Start isEmpty. Operand 18492 states and 25339 transitions. [2021-11-06 17:59:46,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-06 17:59:46,041 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:59:46,041 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 17:59:46,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 17:59:46,041 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 87 more)] === [2021-11-06 17:59:46,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:59:46,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1583825150, now seen corresponding path program 1 times [2021-11-06 17:59:46,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:59:46,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321923009] [2021-11-06 17:59:46,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:59:46,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:59:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:59:46,441 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-06 17:59:46,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:59:46,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321923009] [2021-11-06 17:59:46,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321923009] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:59:46,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752844184] [2021-11-06 17:59:46,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:59:46,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:59:46,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:59:46,444 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) [2021-11-06 17:59:46,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 18:02:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:02:15,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 2873 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-06 18:02:15,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 18:02:16,097 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-06 18:02:16,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752844184] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 18:02:16,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-06 18:02:16,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-11-06 18:02:16,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243793262] [2021-11-06 18:02:16,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 18:02:16,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:02:16,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 18:02:16,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:02:16,099 INFO L87 Difference]: Start difference. First operand 18492 states and 25339 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2021-11-06 18:02:16,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:02:16,633 INFO L93 Difference]: Finished difference Result 36972 states and 50674 transitions. [2021-11-06 18:02:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:02:16,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) Word has length 117 [2021-11-06 18:02:16,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:02:16,668 INFO L225 Difference]: With dead ends: 36972 [2021-11-06 18:02:16,668 INFO L226 Difference]: Without dead ends: 18501 [2021-11-06 18:02:16,695 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:02:16,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18501 states. [2021-11-06 18:02:16,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18501 to 18501. [2021-11-06 18:02:16,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18501 states, 18427 states have (on average 1.3755901666033539) internal successors, (25348), 18500 states have internal predecessors, (25348), 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) [2021-11-06 18:02:17,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18501 states to 18501 states and 25348 transitions. [2021-11-06 18:02:17,013 INFO L78 Accepts]: Start accepts. Automaton has 18501 states and 25348 transitions. Word has length 117 [2021-11-06 18:02:17,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:02:17,013 INFO L470 AbstractCegarLoop]: Abstraction has 18501 states and 25348 transitions. [2021-11-06 18:02:17,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2021-11-06 18:02:17,014 INFO L276 IsEmpty]: Start isEmpty. Operand 18501 states and 25348 transitions. [2021-11-06 18:02:17,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-06 18:02:17,015 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:02:17,015 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2021-11-06 18:02:17,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-06 18:02:17,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 18:02:17,243 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 87 more)] === [2021-11-06 18:02:17,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:02:17,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1093581700, now seen corresponding path program 2 times [2021-11-06 18:02:17,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:02:17,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964328363] [2021-11-06 18:02:17,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:02:17,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:02:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:02:17,582 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-06 18:02:17,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:02:17,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964328363] [2021-11-06 18:02:17,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964328363] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 18:02:17,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907001134] [2021-11-06 18:02:17,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-06 18:02:17,583 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 18:02:17,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:02:17,584 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) [2021-11-06 18:02:17,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process Killed by 15