./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--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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--net--wireless--rtl818x--rtl8180--rtl818x_pci.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 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 19:23:28,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 19:23:28,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 19:23:28,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 19:23:28,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 19:23:28,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 19:23:28,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 19:23:28,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 19:23:28,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 19:23:28,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 19:23:28,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 19:23:28,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 19:23:28,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 19:23:28,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 19:23:28,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 19:23:28,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 19:23:28,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 19:23:28,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 19:23:28,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 19:23:28,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 19:23:28,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 19:23:28,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 19:23:28,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 19:23:28,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 19:23:28,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 19:23:28,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 19:23:28,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 19:23:28,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 19:23:28,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 19:23:28,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 19:23:28,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 19:23:28,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 19:23:28,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 19:23:28,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 19:23:28,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 19:23:28,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 19:23:28,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 19:23:28,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 19:23:28,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 19:23:28,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 19:23:28,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 19:23:28,836 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 19:23:28,861 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 19:23:28,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 19:23:28,862 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 19:23:28,862 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 19:23:28,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 19:23:28,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 19:23:28,864 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 19:23:28,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 19:23:28,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 19:23:28,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 19:23:28,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 19:23:28,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 19:23:28,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 19:23:28,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 19:23:28,866 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 19:23:28,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 19:23:28,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 19:23:28,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 19:23:28,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 19:23:28,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:23:28,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 19:23:28,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 19:23:28,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 19:23:28,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 19:23:28,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 19:23:28,867 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 19:23:28,867 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 19:23:28,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 19:23:28,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 19:23:28,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 [2021-11-05 19:23:29,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 19:23:29,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 19:23:29,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 19:23:29,129 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 19:23:29,130 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 19:23:29,131 INFO L432 ainManager$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--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-11-05 19:23:29,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5e92099/d19083df2e5f4e8bbcf2f2185e742c65/FLAG9b144f112 [2021-11-05 19:23:29,796 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 19:23:29,797 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--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-11-05 19:23:29,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5e92099/d19083df2e5f4e8bbcf2f2185e742c65/FLAG9b144f112 [2021-11-05 19:23:30,227 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5e92099/d19083df2e5f4e8bbcf2f2185e742c65 [2021-11-05 19:23:30,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 19:23:30,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 19:23:30,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 19:23:30,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 19:23:30,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 19:23:30,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:23:30" (1/1) ... [2021-11-05 19:23:30,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1517b272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:30, skipping insertion in model container [2021-11-05 19:23:30,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:23:30" (1/1) ... [2021-11-05 19:23:30,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 19:23:30,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 19:23:32,831 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--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2021-11-05 19:23:32,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:23:32,957 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 19:23:33,271 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--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2021-11-05 19:23:33,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:23:33,480 INFO L208 MainTranslator]: Completed translation [2021-11-05 19:23:33,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:33 WrapperNode [2021-11-05 19:23:33,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 19:23:33,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 19:23:33,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 19:23:33,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 19:23:33,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:33" (1/1) ... [2021-11-05 19:23:33,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:33" (1/1) ... [2021-11-05 19:23:36,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 19:23:36,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 19:23:36,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 19:23:36,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 19:23:36,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:33" (1/1) ... [2021-11-05 19:23:36,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:33" (1/1) ... [2021-11-05 19:23:37,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:33" (1/1) ... [2021-11-05 19:23:37,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:33" (1/1) ... [2021-11-05 19:23:39,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:33" (1/1) ... [2021-11-05 19:23:39,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:33" (1/1) ... [2021-11-05 19:23:39,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:33" (1/1) ... [2021-11-05 19:23:40,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 19:23:40,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 19:23:40,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 19:23:40,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 19:23:40,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:33" (1/1) ... [2021-11-05 19:23:40,150 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:23:40,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:23:40,167 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) [2021-11-05 19:23:40,172 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 [2021-11-05 19:23:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 19:23:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 19:23:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 19:23:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 19:23:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 19:23:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 19:23:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 19:23:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 19:23:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 19:23:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 19:23:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 19:23:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 19:23:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-11-05 19:23:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-11-05 19:23:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 19:23:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 19:23:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 19:23:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 19:23:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 19:24:31,690 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 19:24:31,691 INFO L299 CfgBuilder]: Removed 40710 assume(true) statements. [2021-11-05 19:24:31,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:24:31 BoogieIcfgContainer [2021-11-05 19:24:31,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 19:24:31,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 19:24:31,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 19:24:31,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 19:24:31,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:23:30" (1/3) ... [2021-11-05 19:24:31,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726add15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:24:31, skipping insertion in model container [2021-11-05 19:24:31,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:33" (2/3) ... [2021-11-05 19:24:31,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726add15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:24:31, skipping insertion in model container [2021-11-05 19:24:31,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:24:31" (3/3) ... [2021-11-05 19:24:31,716 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-11-05 19:24:31,720 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 19:24:31,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-05 19:24:31,803 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 19:24:31,808 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 [2021-11-05 19:24:31,809 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-05 19:24:32,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 23420 states, 23402 states have (on average 1.2447226732757883) internal successors, (29129), 23414 states have internal predecessors, (29129), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-05 19:24:32,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 19:24:32,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:24:32,023 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:24:32,024 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:24:32,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:24:32,027 INFO L85 PathProgramCache]: Analyzing trace with hash -636847731, now seen corresponding path program 1 times [2021-11-05 19:24:32,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:24:32,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531303259] [2021-11-05 19:24:32,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:24:32,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:24:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:24:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:24:32,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:24:32,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531303259] [2021-11-05 19:24:32,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531303259] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:24:32,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:24:32,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:24:32,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265567646] [2021-11-05 19:24:32,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:24:32,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 19:24:32,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:24:32,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 19:24:32,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:24:32,654 INFO L87 Difference]: Start difference. First operand has 23420 states, 23402 states have (on average 1.2447226732757883) internal successors, (29129), 23414 states have internal predecessors, (29129), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 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) [2021-11-05 19:24:33,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:24:33,494 INFO L93 Difference]: Finished difference Result 46368 states and 57649 transitions. [2021-11-05 19:24:33,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 19:24:33,496 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 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 82 [2021-11-05 19:24:33,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:24:33,597 INFO L225 Difference]: With dead ends: 46368 [2021-11-05 19:24:33,598 INFO L226 Difference]: Without dead ends: 22869 [2021-11-05 19:24:33,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:24:33,672 INFO L933 BasicCegarLoop]: 28301 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28301 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 19:24:33,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28301 Invalid, 0 Unknown, 0 Unchecked, 42.20ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 19:24:33,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22869 states. [2021-11-05 19:24:34,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22869 to 22869. [2021-11-05 19:24:34,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22869 states, 22852 states have (on average 1.2310519866970069) internal successors, (28132), 22863 states have internal predecessors, (28132), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-05 19:24:34,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22869 states to 22869 states and 28140 transitions. [2021-11-05 19:24:34,393 INFO L78 Accepts]: Start accepts. Automaton has 22869 states and 28140 transitions. Word has length 82 [2021-11-05 19:24:34,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:24:34,394 INFO L470 AbstractCegarLoop]: Abstraction has 22869 states and 28140 transitions. [2021-11-05 19:24:34,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 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) [2021-11-05 19:24:34,395 INFO L276 IsEmpty]: Start isEmpty. Operand 22869 states and 28140 transitions. [2021-11-05 19:24:34,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 19:24:34,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:24:34,401 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:24:34,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 19:24:34,402 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:24:34,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:24:34,404 INFO L85 PathProgramCache]: Analyzing trace with hash -582741599, now seen corresponding path program 1 times [2021-11-05 19:24:34,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:24:34,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444769793] [2021-11-05 19:24:34,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:24:34,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:24:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:24:34,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:24:34,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:24:34,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444769793] [2021-11-05 19:24:34,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444769793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:24:34,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:24:34,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:24:34,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584922934] [2021-11-05 19:24:34,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:24:34,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:24:34,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:24:34,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:24:34,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:24:34,716 INFO L87 Difference]: Start difference. First operand 22869 states and 28140 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-05 19:24:35,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:24:35,700 INFO L93 Difference]: Finished difference Result 59256 states and 73094 transitions. [2021-11-05 19:24:35,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:24:35,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2021-11-05 19:24:35,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:24:35,821 INFO L225 Difference]: With dead ends: 59256 [2021-11-05 19:24:35,821 INFO L226 Difference]: Without dead ends: 36457 [2021-11-05 19:24:36,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:24:36,024 INFO L933 BasicCegarLoop]: 28635 mSDtfsCounter, 16951 mSDsluCounter, 27995 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 170.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16951 SdHoareTripleChecker+Valid, 56630 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 55.30ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 211.97ms IncrementalHoareTripleChecker+Time [2021-11-05 19:24:36,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16951 Valid, 56630 Invalid, 78 Unknown, 0 Unchecked, 55.30ms Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 211.97ms Time] [2021-11-05 19:24:36,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36457 states. [2021-11-05 19:24:36,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36457 to 36440. [2021-11-05 19:24:36,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36440 states, 36421 states have (on average 1.2357705719227918) internal successors, (45008), 36432 states have internal predecessors, (45008), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-05 19:24:36,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36440 states to 36440 states and 45020 transitions. [2021-11-05 19:24:36,935 INFO L78 Accepts]: Start accepts. Automaton has 36440 states and 45020 transitions. Word has length 82 [2021-11-05 19:24:36,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:24:36,937 INFO L470 AbstractCegarLoop]: Abstraction has 36440 states and 45020 transitions. [2021-11-05 19:24:36,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-05 19:24:36,938 INFO L276 IsEmpty]: Start isEmpty. Operand 36440 states and 45020 transitions. [2021-11-05 19:24:36,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-05 19:24:36,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:24:36,944 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:24:36,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 19:24:36,945 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:24:36,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:24:36,949 INFO L85 PathProgramCache]: Analyzing trace with hash 681882068, now seen corresponding path program 1 times [2021-11-05 19:24:36,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:24:36,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632077800] [2021-11-05 19:24:36,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:24:36,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:24:37,081 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 19:24:37,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1714894901] [2021-11-05 19:24:37,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:24:37,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:24:37,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:24:37,083 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) [2021-11-05 19:24:37,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 19:24:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:24:38,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 5104 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-05 19:24:38,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 19:24:38,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:24:38,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 19:24:38,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:24:38,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632077800] [2021-11-05 19:24:38,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 19:24:38,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714894901] [2021-11-05 19:24:38,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714894901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:24:38,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:24:38,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:24:38,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572029172] [2021-11-05 19:24:38,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:24:38,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 19:24:38,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:24:38,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 19:24:38,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 19:24:38,965 INFO L87 Difference]: Start difference. First operand 36440 states and 45020 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 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) [2021-11-05 19:24:41,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:24:41,544 INFO L93 Difference]: Finished difference Result 163028 states and 201593 transitions. [2021-11-05 19:24:41,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 19:24:41,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 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 101 [2021-11-05 19:24:41,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:24:42,044 INFO L225 Difference]: With dead ends: 163028 [2021-11-05 19:24:42,044 INFO L226 Difference]: Without dead ends: 126658 [2021-11-05 19:24:42,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.10ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:24:42,148 INFO L933 BasicCegarLoop]: 63809 mSDtfsCounter, 45664 mSDsluCounter, 56455 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 45666 SdHoareTripleChecker+Valid, 120264 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 121.27ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.82ms IncrementalHoareTripleChecker+Time [2021-11-05 19:24:42,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45666 Valid, 120264 Invalid, 84 Unknown, 0 Unchecked, 121.27ms Time], IncrementalHoareTripleChecker [11 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 87.82ms Time] [2021-11-05 19:24:42,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126658 states. [2021-11-05 19:24:44,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126658 to 71242. [2021-11-05 19:24:44,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71242 states, 71215 states have (on average 1.2333777996208664) internal successors, (87835), 71227 states have internal predecessors, (87835), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (24), 14 states have call predecessors, (24), 8 states have call successors, (24) [2021-11-05 19:24:44,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71242 states to 71242 states and 87867 transitions. [2021-11-05 19:24:44,357 INFO L78 Accepts]: Start accepts. Automaton has 71242 states and 87867 transitions. Word has length 101 [2021-11-05 19:24:44,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:24:44,357 INFO L470 AbstractCegarLoop]: Abstraction has 71242 states and 87867 transitions. [2021-11-05 19:24:44,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 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) [2021-11-05 19:24:44,357 INFO L276 IsEmpty]: Start isEmpty. Operand 71242 states and 87867 transitions. [2021-11-05 19:24:44,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-05 19:24:44,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:24:44,366 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:24:44,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-05 19:24:44,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:24:44,575 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:24:44,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:24:44,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1647696270, now seen corresponding path program 1 times [2021-11-05 19:24:44,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:24:44,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369208169] [2021-11-05 19:24:44,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:24:44,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:24:44,693 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 19:24:44,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033232052] [2021-11-05 19:24:44,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:24:44,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:24:44,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:24:44,695 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) [2021-11-05 19:24:44,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 19:24:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:24:46,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 5103 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-05 19:24:46,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 19:24:46,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:24:46,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 19:24:46,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:24:46,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369208169] [2021-11-05 19:24:46,539 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 19:24:46,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033232052] [2021-11-05 19:24:46,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033232052] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:24:46,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:24:46,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:24:46,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272419831] [2021-11-05 19:24:46,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:24:46,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 19:24:46,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:24:46,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 19:24:46,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 19:24:46,541 INFO L87 Difference]: Start difference. First operand 71242 states and 87867 transitions. Second operand has 4 states, 4 states have (on average 25.5) 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) [2021-11-05 19:24:50,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:24:50,954 INFO L93 Difference]: Finished difference Result 321602 states and 397304 transitions. [2021-11-05 19:24:50,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 19:24:50,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) 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 [2021-11-05 19:24:50,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:24:51,723 INFO L225 Difference]: With dead ends: 321602 [2021-11-05 19:24:51,723 INFO L226 Difference]: Without dead ends: 250430 [2021-11-05 19:24:51,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.42ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:24:51,911 INFO L933 BasicCegarLoop]: 45973 mSDtfsCounter, 63500 mSDsluCounter, 74004 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 63502 SdHoareTripleChecker+Valid, 119977 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 123.24ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.96ms IncrementalHoareTripleChecker+Time [2021-11-05 19:24:51,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63502 Valid, 119977 Invalid, 81 Unknown, 0 Unchecked, 123.24ms Time], IncrementalHoareTripleChecker [13 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 83.96ms Time] [2021-11-05 19:24:52,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250430 states. [2021-11-05 19:24:56,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250430 to 142018. [2021-11-05 19:24:56,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142018 states, 141975 states have (on average 1.233139637260081) internal successors, (175075), 141989 states have internal predecessors, (175075), 16 states have call successors, (16), 8 states have call predecessors, (16), 16 states have return successors, (72), 28 states have call predecessors, (72), 16 states have call successors, (72) [2021-11-05 19:24:56,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142018 states to 142018 states and 175163 transitions. [2021-11-05 19:24:56,608 INFO L78 Accepts]: Start accepts. Automaton has 142018 states and 175163 transitions. Word has length 102 [2021-11-05 19:24:56,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:24:56,609 INFO L470 AbstractCegarLoop]: Abstraction has 142018 states and 175163 transitions. [2021-11-05 19:24:56,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) 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) [2021-11-05 19:24:56,609 INFO L276 IsEmpty]: Start isEmpty. Operand 142018 states and 175163 transitions. [2021-11-05 19:24:56,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-05 19:24:56,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:24:56,614 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:24:56,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-05 19:24:56,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-05 19:24:56,815 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:24:56,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:24:56,816 INFO L85 PathProgramCache]: Analyzing trace with hash -309099541, now seen corresponding path program 1 times [2021-11-05 19:24:56,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:24:56,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76918904] [2021-11-05 19:24:56,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:24:56,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:24:56,923 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 19:24:56,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [817894966] [2021-11-05 19:24:56,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:24:56,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:24:56,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:24:56,925 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 19:24:56,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-05 19:24:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:24:58,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 5108 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-05 19:24:58,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 19:24:58,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:24:58,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 19:24:58,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:24:58,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76918904] [2021-11-05 19:24:58,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 19:24:58,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817894966] [2021-11-05 19:24:58,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817894966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:24:58,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:24:58,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:24:58,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663219566] [2021-11-05 19:24:58,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:24:58,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 19:24:58,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:24:58,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 19:24:58,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 19:24:58,525 INFO L87 Difference]: Start difference. First operand 142018 states and 175163 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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)