./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.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 aaa391796caf9ffd02d820d63142c08953b50843acf6dbe45cefeca4ae26da3b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 15:04:30,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 15:04:30,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 15:04:30,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 15:04:30,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 15:04:30,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 15:04:30,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 15:04:30,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 15:04:30,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 15:04:30,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 15:04:30,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 15:04:30,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 15:04:30,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 15:04:30,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 15:04:30,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 15:04:30,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 15:04:30,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 15:04:30,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 15:04:30,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 15:04:30,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 15:04:30,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 15:04:30,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 15:04:30,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 15:04:30,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 15:04:30,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 15:04:30,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 15:04:30,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 15:04:30,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 15:04:30,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 15:04:30,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 15:04:30,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 15:04:30,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 15:04:30,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 15:04:30,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 15:04:30,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 15:04:30,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 15:04:30,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 15:04:30,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 15:04:30,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 15:04:30,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 15:04:30,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 15:04:30,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 15:04:30,166 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 15:04:30,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 15:04:30,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 15:04:30,167 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 15:04:30,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 15:04:30,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 15:04:30,168 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 15:04:30,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 15:04:30,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 15:04:30,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 15:04:30,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 15:04:30,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 15:04:30,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 15:04:30,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 15:04:30,170 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 15:04:30,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 15:04:30,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 15:04:30,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 15:04:30,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 15:04:30,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:04:30,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 15:04:30,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 15:04:30,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 15:04:30,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 15:04:30,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 15:04:30,172 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 15:04:30,172 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 15:04:30,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 15:04:30,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 15:04:30,172 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaa391796caf9ffd02d820d63142c08953b50843acf6dbe45cefeca4ae26da3b [2021-11-06 15:04:30,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 15:04:30,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 15:04:30,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 15:04:30,391 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 15:04:30,392 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 15:04:30,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i [2021-11-06 15:04:30,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c3d0702/2ca45e3c18d4415986fce085ab533f4e/FLAG7d1d23183 [2021-11-06 15:04:30,968 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 15:04:30,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i [2021-11-06 15:04:31,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c3d0702/2ca45e3c18d4415986fce085ab533f4e/FLAG7d1d23183 [2021-11-06 15:04:31,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c3d0702/2ca45e3c18d4415986fce085ab533f4e [2021-11-06 15:04:31,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 15:04:31,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 15:04:31,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 15:04:31,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 15:04:31,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 15:04:31,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:04:31" (1/1) ... [2021-11-06 15:04:31,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@95c86e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:04:31, skipping insertion in model container [2021-11-06 15:04:31,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:04:31" (1/1) ... [2021-11-06 15:04:31,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 15:04:31,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 15:04:31,809 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5977] [2021-11-06 15:04:31,809 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5978-5979] [2021-11-06 15:04:32,154 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i[185445,185458] [2021-11-06 15:04:33,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:04:33,153 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 15:04:33,263 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5977] [2021-11-06 15:04:33,263 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5978-5979] [2021-11-06 15:04:33,273 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i[185445,185458] [2021-11-06 15:04:33,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:04:33,673 INFO L208 MainTranslator]: Completed translation [2021-11-06 15:04:33,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:04:33 WrapperNode [2021-11-06 15:04:33,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 15:04:33,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 15:04:33,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 15:04:33,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 15:04:33,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:04:33" (1/1) ... [2021-11-06 15:04:33,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:04:33" (1/1) ... [2021-11-06 15:04:34,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 15:04:34,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 15:04:34,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 15:04:34,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 15:04:34,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:04:33" (1/1) ... [2021-11-06 15:04:34,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:04:33" (1/1) ... [2021-11-06 15:04:34,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:04:33" (1/1) ... [2021-11-06 15:04:34,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:04:33" (1/1) ... [2021-11-06 15:04:34,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:04:33" (1/1) ... [2021-11-06 15:04:34,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:04:33" (1/1) ... [2021-11-06 15:04:34,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:04:33" (1/1) ... [2021-11-06 15:04:34,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 15:04:34,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 15:04:34,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 15:04:34,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 15:04:34,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:04:33" (1/1) ... [2021-11-06 15:04:34,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:04:34,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:04:34,815 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 15:04:34,848 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 15:04:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-06 15:04:34,858 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-06 15:04:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-06 15:04:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 15:04:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 15:04:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure hso_kick_transmit [2021-11-06 15:04:34,859 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_kick_transmit [2021-11-06 15:04:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 15:04:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 15:04:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 15:04:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-06 15:04:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 15:04:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 15:04:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 15:04:34,860 INFO L130 BoogieDeclarations]: Found specification of procedure hso_resume [2021-11-06 15:04:34,860 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_resume [2021-11-06 15:04:34,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 15:04:34,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 15:04:34,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 15:04:34,860 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-06 15:04:34,860 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-06 15:04:34,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 15:04:34,861 INFO L130 BoogieDeclarations]: Found specification of procedure hso_free_interface [2021-11-06 15:04:34,861 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_free_interface [2021-11-06 15:04:34,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 15:04:34,861 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 15:04:34,861 INFO L130 BoogieDeclarations]: Found specification of procedure hso_disconnect [2021-11-06 15:04:34,861 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_disconnect [2021-11-06 15:04:34,861 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 15:04:34,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 15:04:34,862 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 15:04:34,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 15:04:34,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 15:04:34,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 15:04:34,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 15:04:58,297 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 15:04:58,298 INFO L299 CfgBuilder]: Removed 3032 assume(true) statements. [2021-11-06 15:04:58,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:04:58 BoogieIcfgContainer [2021-11-06 15:04:58,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 15:04:58,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 15:04:58,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 15:04:58,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 15:04:58,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 03:04:31" (1/3) ... [2021-11-06 15:04:58,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e5331a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:04:58, skipping insertion in model container [2021-11-06 15:04:58,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:04:33" (2/3) ... [2021-11-06 15:04:58,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e5331a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:04:58, skipping insertion in model container [2021-11-06 15:04:58,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:04:58" (3/3) ... [2021-11-06 15:04:58,310 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i [2021-11-06 15:04:58,314 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 15:04:58,315 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2021-11-06 15:04:58,373 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 15:04:58,379 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 15:04:58,379 INFO L340 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2021-11-06 15:04:58,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 3210 states, 3127 states have (on average 1.4505916213623282) internal successors, (4536), 3185 states have internal predecessors, (4536), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-06 15:04:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-06 15:04:58,450 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:04:58,451 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] [2021-11-06 15:04:58,455 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:04:58,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:04:58,459 INFO L85 PathProgramCache]: Analyzing trace with hash 746580595, now seen corresponding path program 1 times [2021-11-06 15:04:58,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:04:58,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146124540] [2021-11-06 15:04:58,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:04:58,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:04:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:04:59,151 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 15:04:59,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:04:59,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146124540] [2021-11-06 15:04:59,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146124540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:04:59,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:04:59,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:04:59,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203335495] [2021-11-06 15:04:59,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:04:59,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:04:59,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:04:59,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:04:59,177 INFO L87 Difference]: Start difference. First operand has 3210 states, 3127 states have (on average 1.4505916213623282) internal successors, (4536), 3185 states have internal predecessors, (4536), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 15:04:59,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:04:59,455 INFO L93 Difference]: Finished difference Result 8585 states and 12315 transitions. [2021-11-06 15:04:59,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:04:59,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-11-06 15:04:59,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:04:59,482 INFO L225 Difference]: With dead ends: 8585 [2021-11-06 15:04:59,482 INFO L226 Difference]: Without dead ends: 5348 [2021-11-06 15:04:59,494 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 15:04:59,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5348 states. [2021-11-06 15:04:59,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5348 to 5299. [2021-11-06 15:04:59,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5196 states have (on average 1.4234026173979986) internal successors, (7396), 5255 states have internal predecessors, (7396), 31 states have call successors, (31), 16 states have call predecessors, (31), 16 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-06 15:04:59,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 7458 transitions. [2021-11-06 15:04:59,656 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 7458 transitions. Word has length 39 [2021-11-06 15:04:59,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:04:59,656 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 7458 transitions. [2021-11-06 15:04:59,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 15:04:59,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 7458 transitions. [2021-11-06 15:04:59,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-06 15:04:59,658 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:04:59,658 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] [2021-11-06 15:04:59,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 15:04:59,659 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:04:59,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:04:59,659 INFO L85 PathProgramCache]: Analyzing trace with hash 695045669, now seen corresponding path program 1 times [2021-11-06 15:04:59,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:04:59,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546916213] [2021-11-06 15:04:59,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:04:59,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:04:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:04:59,874 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 15:04:59,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:04:59,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546916213] [2021-11-06 15:04:59,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546916213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:04:59,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:04:59,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:04:59,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505076655] [2021-11-06 15:04:59,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:04:59,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:04:59,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:04:59,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:04:59,877 INFO L87 Difference]: Start difference. First operand 5299 states and 7458 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 15:05:00,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:00,152 INFO L93 Difference]: Finished difference Result 15243 states and 21563 transitions. [2021-11-06 15:05:00,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:05:00,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2021-11-06 15:05:00,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:00,188 INFO L225 Difference]: With dead ends: 15243 [2021-11-06 15:05:00,189 INFO L226 Difference]: Without dead ends: 10041 [2021-11-06 15:05:00,205 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 15:05:00,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10041 states. [2021-11-06 15:05:00,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10041 to 9943. [2021-11-06 15:05:00,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9943 states, 9793 states have (on average 1.431328499948943) internal successors, (14017), 9856 states have internal predecessors, (14017), 62 states have call successors, (62), 32 states have call predecessors, (62), 32 states have return successors, (79), 58 states have call predecessors, (79), 62 states have call successors, (79) [2021-11-06 15:05:00,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9943 states to 9943 states and 14158 transitions. [2021-11-06 15:05:00,608 INFO L78 Accepts]: Start accepts. Automaton has 9943 states and 14158 transitions. Word has length 48 [2021-11-06 15:05:00,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:00,609 INFO L470 AbstractCegarLoop]: Abstraction has 9943 states and 14158 transitions. [2021-11-06 15:05:00,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 15:05:00,609 INFO L276 IsEmpty]: Start isEmpty. Operand 9943 states and 14158 transitions. [2021-11-06 15:05:00,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-06 15:05:00,612 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:00,612 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:05:00,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 15:05:00,613 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:00,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:00,619 INFO L85 PathProgramCache]: Analyzing trace with hash 895807168, now seen corresponding path program 1 times [2021-11-06 15:05:00,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:00,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105151550] [2021-11-06 15:05:00,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:00,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:00,845 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 15:05:00,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:00,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105151550] [2021-11-06 15:05:00,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105151550] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:05:00,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:05:00,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:05:00,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693113717] [2021-11-06 15:05:00,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:05:00,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:00,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:05:00,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:05:00,848 INFO L87 Difference]: Start difference. First operand 9943 states and 14158 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:01,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:01,150 INFO L93 Difference]: Finished difference Result 24555 states and 34858 transitions. [2021-11-06 15:05:01,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:05:01,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-06 15:05:01,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:01,195 INFO L225 Difference]: With dead ends: 24555 [2021-11-06 15:05:01,196 INFO L226 Difference]: Without dead ends: 14709 [2021-11-06 15:05:01,216 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 15:05:01,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14709 states. [2021-11-06 15:05:01,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14709 to 14603. [2021-11-06 15:05:01,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14603 states, 14407 states have (on average 1.4259040744082738) internal successors, (20543), 14474 states have internal predecessors, (20543), 92 states have call successors, (92), 48 states have call predecessors, (92), 48 states have return successors, (117), 86 states have call predecessors, (117), 92 states have call successors, (117) [2021-11-06 15:05:01,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14603 states to 14603 states and 20752 transitions. [2021-11-06 15:05:01,459 INFO L78 Accepts]: Start accepts. Automaton has 14603 states and 20752 transitions. Word has length 68 [2021-11-06 15:05:01,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:01,460 INFO L470 AbstractCegarLoop]: Abstraction has 14603 states and 20752 transitions. [2021-11-06 15:05:01,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:01,460 INFO L276 IsEmpty]: Start isEmpty. Operand 14603 states and 20752 transitions. [2021-11-06 15:05:01,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-06 15:05:01,461 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:01,462 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 15:05:01,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 15:05:01,462 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:01,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:01,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1188807584, now seen corresponding path program 1 times [2021-11-06 15:05:01,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:01,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628096487] [2021-11-06 15:05:01,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:01,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:01,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:05:01,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:01,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628096487] [2021-11-06 15:05:01,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628096487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:05:01,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:05:01,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:05:01,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232104944] [2021-11-06 15:05:01,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:05:01,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:01,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:05:01,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:05:01,719 INFO L87 Difference]: Start difference. First operand 14603 states and 20752 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 15:05:01,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:01,902 INFO L93 Difference]: Finished difference Result 29125 states and 41419 transitions. [2021-11-06 15:05:01,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:05:01,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2021-11-06 15:05:01,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:01,945 INFO L225 Difference]: With dead ends: 29125 [2021-11-06 15:05:01,945 INFO L226 Difference]: Without dead ends: 14619 [2021-11-06 15:05:01,971 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 15:05:01,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14619 states. [2021-11-06 15:05:02,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14619 to 14611. [2021-11-06 15:05:02,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14611 states, 14415 states have (on average 1.425667707249393) internal successors, (20551), 14482 states have internal predecessors, (20551), 92 states have call successors, (92), 48 states have call predecessors, (92), 48 states have return successors, (117), 86 states have call predecessors, (117), 92 states have call successors, (117) [2021-11-06 15:05:02,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14611 states to 14611 states and 20760 transitions. [2021-11-06 15:05:02,219 INFO L78 Accepts]: Start accepts. Automaton has 14611 states and 20760 transitions. Word has length 74 [2021-11-06 15:05:02,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:02,220 INFO L470 AbstractCegarLoop]: Abstraction has 14611 states and 20760 transitions. [2021-11-06 15:05:02,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 15:05:02,221 INFO L276 IsEmpty]: Start isEmpty. Operand 14611 states and 20760 transitions. [2021-11-06 15:05:02,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-06 15:05:02,223 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:02,223 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 15:05:02,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 15:05:02,223 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:02,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:02,224 INFO L85 PathProgramCache]: Analyzing trace with hash 99029244, now seen corresponding path program 1 times [2021-11-06 15:05:02,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:02,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368619247] [2021-11-06 15:05:02,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:02,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:02,552 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:05:02,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:02,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368619247] [2021-11-06 15:05:02,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368619247] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:02,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902960235] [2021-11-06 15:05:02,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:02,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:02,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:05:02,562 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 15:05:02,565 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 15:05:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:03,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 4618 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 15:05:03,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 15:05:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-06 15:05:04,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902960235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:05:04,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 15:05:04,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-06 15:05:04,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068960765] [2021-11-06 15:05:04,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:05:04,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:04,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:05:04,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:04,165 INFO L87 Difference]: Start difference. First operand 14611 states and 20760 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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 15:05:04,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:04,332 INFO L93 Difference]: Finished difference Result 29125 states and 41411 transitions. [2021-11-06 15:05:04,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:05:04,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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 76 [2021-11-06 15:05:04,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:04,370 INFO L225 Difference]: With dead ends: 29125 [2021-11-06 15:05:04,370 INFO L226 Difference]: Without dead ends: 14611 [2021-11-06 15:05:04,393 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:04,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14611 states. [2021-11-06 15:05:04,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14611 to 14611. [2021-11-06 15:05:04,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14611 states, 14415 states have (on average 1.425112729795352) internal successors, (20543), 14482 states have internal predecessors, (20543), 92 states have call successors, (92), 48 states have call predecessors, (92), 48 states have return successors, (117), 86 states have call predecessors, (117), 92 states have call successors, (117) [2021-11-06 15:05:04,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14611 states to 14611 states and 20752 transitions. [2021-11-06 15:05:04,618 INFO L78 Accepts]: Start accepts. Automaton has 14611 states and 20752 transitions. Word has length 76 [2021-11-06 15:05:04,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:04,620 INFO L470 AbstractCegarLoop]: Abstraction has 14611 states and 20752 transitions. [2021-11-06 15:05:04,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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 15:05:04,620 INFO L276 IsEmpty]: Start isEmpty. Operand 14611 states and 20752 transitions. [2021-11-06 15:05:04,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-06 15:05:04,621 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:04,621 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 15:05:04,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-06 15:05:04,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:04,848 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:04,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:04,848 INFO L85 PathProgramCache]: Analyzing trace with hash 2022257278, now seen corresponding path program 1 times [2021-11-06 15:05:04,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:04,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121181075] [2021-11-06 15:05:04,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:04,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:05:05,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:05,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121181075] [2021-11-06 15:05:05,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121181075] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:05,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927849281] [2021-11-06 15:05:05,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:05,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:05,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:05:05,176 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 15:05:05,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 15:05:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:06,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 4616 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 15:05:06,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 15:05:06,849 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-06 15:05:06,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927849281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:05:06,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 15:05:06,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-06 15:05:06,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231560243] [2021-11-06 15:05:06,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:05:06,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:06,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:05:06,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:06,850 INFO L87 Difference]: Start difference. First operand 14611 states and 20752 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 15:05:09,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:09,313 INFO L93 Difference]: Finished difference Result 29129 states and 41399 transitions. [2021-11-06 15:05:09,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:05:09,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2021-11-06 15:05:09,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:09,346 INFO L225 Difference]: With dead ends: 29129 [2021-11-06 15:05:09,347 INFO L226 Difference]: Without dead ends: 14607 [2021-11-06 15:05:09,372 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:09,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14607 states. [2021-11-06 15:05:09,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14607 to 14461. [2021-11-06 15:05:09,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14461 states, 14265 states have (on average 1.4273396424815983) internal successors, (20361), 14332 states have internal predecessors, (20361), 92 states have call successors, (92), 48 states have call predecessors, (92), 48 states have return successors, (117), 86 states have call predecessors, (117), 92 states have call successors, (117) [2021-11-06 15:05:09,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14461 states to 14461 states and 20570 transitions. [2021-11-06 15:05:09,682 INFO L78 Accepts]: Start accepts. Automaton has 14461 states and 20570 transitions. Word has length 76 [2021-11-06 15:05:09,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:09,683 INFO L470 AbstractCegarLoop]: Abstraction has 14461 states and 20570 transitions. [2021-11-06 15:05:09,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 15:05:09,684 INFO L276 IsEmpty]: Start isEmpty. Operand 14461 states and 20570 transitions. [2021-11-06 15:05:09,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-06 15:05:09,686 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:09,686 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 15:05:09,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-06 15:05:09,900 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,SelfDestructingSolverStorable5 [2021-11-06 15:05:09,900 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:09,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:09,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1537082192, now seen corresponding path program 1 times [2021-11-06 15:05:09,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:09,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106414252] [2021-11-06 15:05:09,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:09,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:10,104 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:05:10,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:10,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106414252] [2021-11-06 15:05:10,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106414252] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:10,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347270678] [2021-11-06 15:05:10,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:10,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:10,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:05:10,108 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) [2021-11-06 15:05:10,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-06 15:05:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:11,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 4665 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 15:05:11,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 15:05:11,804 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-06 15:05:11,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347270678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:05:11,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 15:05:11,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-06 15:05:11,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267488561] [2021-11-06 15:05:11,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:05:11,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:11,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:05:11,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:11,806 INFO L87 Difference]: Start difference. First operand 14461 states and 20570 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 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 15:05:12,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:12,201 INFO L93 Difference]: Finished difference Result 15297 states and 21689 transitions. [2021-11-06 15:05:12,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:05:12,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 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 81 [2021-11-06 15:05:12,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:12,236 INFO L225 Difference]: With dead ends: 15297 [2021-11-06 15:05:12,237 INFO L226 Difference]: Without dead ends: 15205 [2021-11-06 15:05:12,244 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:12,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15205 states. [2021-11-06 15:05:12,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15205 to 15073. [2021-11-06 15:05:12,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15073 states, 14914 states have (on average 1.4146439586965267) internal successors, (21098), 14940 states have internal predecessors, (21098), 92 states have call successors, (92), 52 states have call predecessors, (92), 52 states have return successors, (121), 86 states have call predecessors, (121), 92 states have call successors, (121) [2021-11-06 15:05:12,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15073 states to 15073 states and 21311 transitions. [2021-11-06 15:05:12,634 INFO L78 Accepts]: Start accepts. Automaton has 15073 states and 21311 transitions. Word has length 81 [2021-11-06 15:05:12,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:12,635 INFO L470 AbstractCegarLoop]: Abstraction has 15073 states and 21311 transitions. [2021-11-06 15:05:12,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 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 15:05:12,636 INFO L276 IsEmpty]: Start isEmpty. Operand 15073 states and 21311 transitions. [2021-11-06 15:05:12,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-06 15:05:12,643 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:12,643 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:05:12,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-06 15:05:12,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:12,884 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:12,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:12,884 INFO L85 PathProgramCache]: Analyzing trace with hash 85733240, now seen corresponding path program 1 times [2021-11-06 15:05:12,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:12,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510633792] [2021-11-06 15:05:12,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:12,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:13,084 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:05:13,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:13,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510633792] [2021-11-06 15:05:13,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510633792] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:13,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607466788] [2021-11-06 15:05:13,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:13,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:13,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:05:13,100 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 15:05:13,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-06 15:05:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:14,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 4688 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 15:05:14,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 15:05:14,691 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-06 15:05:14,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607466788] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:05:14,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 15:05:14,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-06 15:05:14,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023330219] [2021-11-06 15:05:14,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:05:14,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:14,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:05:14,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:14,693 INFO L87 Difference]: Start difference. First operand 15073 states and 21311 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:15,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:15,187 INFO L93 Difference]: Finished difference Result 37837 states and 53535 transitions. [2021-11-06 15:05:15,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:05:15,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-11-06 15:05:15,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:15,238 INFO L225 Difference]: With dead ends: 37837 [2021-11-06 15:05:15,238 INFO L226 Difference]: Without dead ends: 22861 [2021-11-06 15:05:15,263 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:15,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22861 states. [2021-11-06 15:05:15,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22861 to 22685. [2021-11-06 15:05:15,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22685 states, 22442 states have (on average 1.4160948222083594) internal successors, (31780), 22476 states have internal predecessors, (31780), 142 states have call successors, (142), 86 states have call predecessors, (142), 86 states have return successors, (186), 132 states have call predecessors, (186), 142 states have call successors, (186) [2021-11-06 15:05:15,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22685 states to 22685 states and 32108 transitions. [2021-11-06 15:05:15,671 INFO L78 Accepts]: Start accepts. Automaton has 22685 states and 32108 transitions. Word has length 98 [2021-11-06 15:05:15,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:15,672 INFO L470 AbstractCegarLoop]: Abstraction has 22685 states and 32108 transitions. [2021-11-06 15:05:15,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:15,674 INFO L276 IsEmpty]: Start isEmpty. Operand 22685 states and 32108 transitions. [2021-11-06 15:05:15,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-06 15:05:15,680 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:15,681 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:05:15,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-06 15:05:15,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:15,895 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:15,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:15,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1449503104, now seen corresponding path program 1 times [2021-11-06 15:05:15,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:15,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530993848] [2021-11-06 15:05:15,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:15,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:16,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:05:16,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:16,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530993848] [2021-11-06 15:05:16,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530993848] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:16,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669517178] [2021-11-06 15:05:16,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:16,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:16,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:05:16,099 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 15:05:16,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-06 15:05:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:17,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 4971 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 15:05:17,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 15:05:17,789 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-06 15:05:17,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669517178] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:05:17,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 15:05:17,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-06 15:05:17,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689503147] [2021-11-06 15:05:17,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:05:17,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:17,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:05:17,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:17,791 INFO L87 Difference]: Start difference. First operand 22685 states and 32108 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:18,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:18,261 INFO L93 Difference]: Finished difference Result 55735 states and 79175 transitions. [2021-11-06 15:05:18,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:05:18,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-06 15:05:18,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:18,328 INFO L225 Difference]: With dead ends: 55735 [2021-11-06 15:05:18,329 INFO L226 Difference]: Without dead ends: 33147 [2021-11-06 15:05:18,366 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:18,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33147 states. [2021-11-06 15:05:18,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33147 to 33097. [2021-11-06 15:05:18,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33097 states, 32740 states have (on average 1.4243738546120952) internal successors, (46634), 32786 states have internal predecessors, (46634), 208 states have call successors, (208), 134 states have call predecessors, (208), 134 states have return successors, (269), 192 states have call predecessors, (269), 208 states have call successors, (269) [2021-11-06 15:05:18,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33097 states to 33097 states and 47111 transitions. [2021-11-06 15:05:18,914 INFO L78 Accepts]: Start accepts. Automaton has 33097 states and 47111 transitions. Word has length 114 [2021-11-06 15:05:18,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:18,914 INFO L470 AbstractCegarLoop]: Abstraction has 33097 states and 47111 transitions. [2021-11-06 15:05:18,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:18,915 INFO L276 IsEmpty]: Start isEmpty. Operand 33097 states and 47111 transitions. [2021-11-06 15:05:18,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-06 15:05:18,930 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:18,930 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-06 15:05:18,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-06 15:05:19,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:19,152 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:19,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:19,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1395952561, now seen corresponding path program 1 times [2021-11-06 15:05:19,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:19,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909778748] [2021-11-06 15:05:19,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:19,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-06 15:05:19,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:19,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909778748] [2021-11-06 15:05:19,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909778748] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:19,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668945501] [2021-11-06 15:05:19,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:19,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:19,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:05:19,520 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 15:05:19,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-06 15:05:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:20,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 5042 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 15:05:20,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 15:05:21,176 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-06 15:05:21,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668945501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:05:21,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 15:05:21,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-06 15:05:21,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583912736] [2021-11-06 15:05:21,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:05:21,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:21,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:05:21,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:21,177 INFO L87 Difference]: Start difference. First operand 33097 states and 47111 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:21,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:21,890 INFO L93 Difference]: Finished difference Result 76559 states and 109181 transitions. [2021-11-06 15:05:21,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:05:21,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2021-11-06 15:05:21,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:21,986 INFO L225 Difference]: With dead ends: 76559 [2021-11-06 15:05:21,987 INFO L226 Difference]: Without dead ends: 43559 [2021-11-06 15:05:22,044 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:22,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43559 states. [2021-11-06 15:05:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43559 to 43509. [2021-11-06 15:05:23,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43509 states, 43038 states have (on average 1.4289697476648544) internal successors, (61500), 43096 states have internal predecessors, (61500), 274 states have call successors, (274), 182 states have call predecessors, (274), 182 states have return successors, (352), 252 states have call predecessors, (352), 274 states have call successors, (352) [2021-11-06 15:05:23,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43509 states to 43509 states and 62126 transitions. [2021-11-06 15:05:23,368 INFO L78 Accepts]: Start accepts. Automaton has 43509 states and 62126 transitions. Word has length 124 [2021-11-06 15:05:23,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:23,369 INFO L470 AbstractCegarLoop]: Abstraction has 43509 states and 62126 transitions. [2021-11-06 15:05:23,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:23,369 INFO L276 IsEmpty]: Start isEmpty. Operand 43509 states and 62126 transitions. [2021-11-06 15:05:23,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-06 15:05:23,383 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:23,383 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:05:23,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-06 15:05:23,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:23,599 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:23,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:23,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1683825483, now seen corresponding path program 1 times [2021-11-06 15:05:23,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:23,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324208080] [2021-11-06 15:05:23,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:23,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:23,774 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-06 15:05:23,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:23,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324208080] [2021-11-06 15:05:23,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324208080] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:23,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710347352] [2021-11-06 15:05:23,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:23,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:23,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:05:23,777 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 15:05:23,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-06 15:05:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:25,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 4888 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 15:05:25,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 15:05:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-06 15:05:25,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710347352] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:05:25,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 15:05:25,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-06 15:05:25,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068148039] [2021-11-06 15:05:25,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:05:25,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:25,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:05:25,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:25,543 INFO L87 Difference]: Start difference. First operand 43509 states and 62126 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:26,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:26,312 INFO L93 Difference]: Finished difference Result 86929 states and 124159 transitions. [2021-11-06 15:05:26,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:05:26,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-06 15:05:26,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:26,396 INFO L225 Difference]: With dead ends: 86929 [2021-11-06 15:05:26,396 INFO L226 Difference]: Without dead ends: 43517 [2021-11-06 15:05:26,462 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:26,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43517 states. [2021-11-06 15:05:27,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43517 to 43517. [2021-11-06 15:05:27,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43517 states, 43046 states have (on average 1.42889002462482) internal successors, (61508), 43104 states have internal predecessors, (61508), 274 states have call successors, (274), 182 states have call predecessors, (274), 182 states have return successors, (352), 252 states have call predecessors, (352), 274 states have call successors, (352) [2021-11-06 15:05:27,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43517 states to 43517 states and 62134 transitions. [2021-11-06 15:05:27,467 INFO L78 Accepts]: Start accepts. Automaton has 43517 states and 62134 transitions. Word has length 128 [2021-11-06 15:05:27,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:27,468 INFO L470 AbstractCegarLoop]: Abstraction has 43517 states and 62134 transitions. [2021-11-06 15:05:27,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:27,468 INFO L276 IsEmpty]: Start isEmpty. Operand 43517 states and 62134 transitions. [2021-11-06 15:05:27,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-06 15:05:27,479 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:27,479 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:05:27,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-06 15:05:27,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:27,705 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:27,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:27,705 INFO L85 PathProgramCache]: Analyzing trace with hash 2130061555, now seen corresponding path program 1 times [2021-11-06 15:05:27,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:27,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187966589] [2021-11-06 15:05:27,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:27,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:28,199 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-06 15:05:28,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:28,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187966589] [2021-11-06 15:05:28,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187966589] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:28,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500752215] [2021-11-06 15:05:28,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:28,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:28,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:05:28,202 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 15:05:28,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-06 15:05:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:29,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 4891 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 15:05:29,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 15:05:30,016 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-06 15:05:30,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500752215] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:30,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-06 15:05:30,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-11-06 15:05:30,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711310624] [2021-11-06 15:05:30,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 15:05:30,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:30,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 15:05:30,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:30,018 INFO L87 Difference]: Start difference. First operand 43517 states and 62134 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:30,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:30,644 INFO L93 Difference]: Finished difference Result 86961 states and 124191 transitions. [2021-11-06 15:05:30,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 15:05:30,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-06 15:05:30,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:30,730 INFO L225 Difference]: With dead ends: 86961 [2021-11-06 15:05:30,731 INFO L226 Difference]: Without dead ends: 43541 [2021-11-06 15:05:30,878 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:30,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43541 states. [2021-11-06 15:05:31,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43541 to 43533. [2021-11-06 15:05:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43533 states, 43062 states have (on average 1.4287306674097813) internal successors, (61524), 43120 states have internal predecessors, (61524), 274 states have call successors, (274), 182 states have call predecessors, (274), 182 states have return successors, (352), 252 states have call predecessors, (352), 274 states have call successors, (352) [2021-11-06 15:05:31,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43533 states to 43533 states and 62150 transitions. [2021-11-06 15:05:31,757 INFO L78 Accepts]: Start accepts. Automaton has 43533 states and 62150 transitions. Word has length 128 [2021-11-06 15:05:31,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:31,758 INFO L470 AbstractCegarLoop]: Abstraction has 43533 states and 62150 transitions. [2021-11-06 15:05:31,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:31,758 INFO L276 IsEmpty]: Start isEmpty. Operand 43533 states and 62150 transitions. [2021-11-06 15:05:31,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-06 15:05:31,770 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:31,770 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1] [2021-11-06 15:05:31,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-06 15:05:31,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-06 15:05:31,983 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:31,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:31,984 INFO L85 PathProgramCache]: Analyzing trace with hash -541828785, now seen corresponding path program 2 times [2021-11-06 15:05:31,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:31,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782569908] [2021-11-06 15:05:31,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:31,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-06 15:05:32,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:32,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782569908] [2021-11-06 15:05:32,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782569908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:05:32,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:05:32,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 15:05:32,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403282959] [2021-11-06 15:05:32,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 15:05:32,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:32,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 15:05:32,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 15:05:32,172 INFO L87 Difference]: Start difference. First operand 43533 states and 62150 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:35,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:35,202 INFO L93 Difference]: Finished difference Result 86985 states and 124207 transitions. [2021-11-06 15:05:35,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 15:05:35,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-11-06 15:05:35,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:35,289 INFO L225 Difference]: With dead ends: 86985 [2021-11-06 15:05:35,289 INFO L226 Difference]: Without dead ends: 43533 [2021-11-06 15:05:35,346 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:35,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43533 states. [2021-11-06 15:05:36,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43533 to 43533. [2021-11-06 15:05:36,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43533 states, 43062 states have (on average 1.4285448887650365) internal successors, (61516), 43120 states have internal predecessors, (61516), 274 states have call successors, (274), 182 states have call predecessors, (274), 182 states have return successors, (352), 252 states have call predecessors, (352), 274 states have call successors, (352) [2021-11-06 15:05:36,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43533 states to 43533 states and 62142 transitions. [2021-11-06 15:05:36,301 INFO L78 Accepts]: Start accepts. Automaton has 43533 states and 62142 transitions. Word has length 130 [2021-11-06 15:05:36,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:36,301 INFO L470 AbstractCegarLoop]: Abstraction has 43533 states and 62142 transitions. [2021-11-06 15:05:36,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:36,302 INFO L276 IsEmpty]: Start isEmpty. Operand 43533 states and 62142 transitions. [2021-11-06 15:05:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-06 15:05:36,331 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:36,331 INFO L513 BasicCegarLoop]: trace histogram [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, 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 15:05:36,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-06 15:05:36,332 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ##fun~$Pointer$~TO~VOIDErr5ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:36,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:36,332 INFO L85 PathProgramCache]: Analyzing trace with hash 427842824, now seen corresponding path program 1 times [2021-11-06 15:05:36,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:36,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215431918] [2021-11-06 15:05:36,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:36,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:36,610 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-06 15:05:36,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:36,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215431918] [2021-11-06 15:05:36,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215431918] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:05:36,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:05:36,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 15:05:36,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229334892] [2021-11-06 15:05:36,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 15:05:36,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:36,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 15:05:36,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 15:05:36,612 INFO L87 Difference]: Start difference. First operand 43533 states and 62142 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:37,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:37,575 INFO L93 Difference]: Finished difference Result 92079 states and 131610 transitions. [2021-11-06 15:05:37,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:05:37,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-06 15:05:37,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:37,684 INFO L225 Difference]: With dead ends: 92079 [2021-11-06 15:05:37,684 INFO L226 Difference]: Without dead ends: 48643 [2021-11-06 15:05:37,753 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:05:37,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48643 states. [2021-11-06 15:05:38,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48643 to 45095. [2021-11-06 15:05:38,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45095 states, 44613 states have (on average 1.4284401407661445) internal successors, (63727), 44682 states have internal predecessors, (63727), 274 states have call successors, (274), 182 states have call predecessors, (274), 193 states have return successors, (363), 252 states have call predecessors, (363), 274 states have call successors, (363) [2021-11-06 15:05:38,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45095 states to 45095 states and 64364 transitions. [2021-11-06 15:05:38,770 INFO L78 Accepts]: Start accepts. Automaton has 45095 states and 64364 transitions. Word has length 138 [2021-11-06 15:05:38,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:38,770 INFO L470 AbstractCegarLoop]: Abstraction has 45095 states and 64364 transitions. [2021-11-06 15:05:38,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:38,771 INFO L276 IsEmpty]: Start isEmpty. Operand 45095 states and 64364 transitions. [2021-11-06 15:05:38,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-06 15:05:38,785 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:38,785 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:05:38,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-06 15:05:38,786 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:38,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:38,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1195282084, now seen corresponding path program 1 times [2021-11-06 15:05:38,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:38,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733667856] [2021-11-06 15:05:38,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:38,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:39,180 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-06 15:05:39,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:39,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733667856] [2021-11-06 15:05:39,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733667856] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:39,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903330763] [2021-11-06 15:05:39,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:39,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:39,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:05:39,182 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 15:05:39,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-06 15:05:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:40,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 5036 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 15:05:40,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 15:05:41,210 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-06 15:05:41,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903330763] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:41,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-06 15:05:41,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-06 15:05:41,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076181246] [2021-11-06 15:05:41,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 15:05:41,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:41,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 15:05:41,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-06 15:05:41,212 INFO L87 Difference]: Start difference. First operand 45095 states and 64364 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:41,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:41,917 INFO L93 Difference]: Finished difference Result 90117 states and 128651 transitions. [2021-11-06 15:05:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:05:41,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-06 15:05:41,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:42,010 INFO L225 Difference]: With dead ends: 90117 [2021-11-06 15:05:42,010 INFO L226 Difference]: Without dead ends: 45119 [2021-11-06 15:05:42,078 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-06 15:05:42,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45119 states. [2021-11-06 15:05:42,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45119 to 45111. [2021-11-06 15:05:43,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45111 states, 44629 states have (on average 1.4282865401420601) internal successors, (63743), 44698 states have internal predecessors, (63743), 274 states have call successors, (274), 182 states have call predecessors, (274), 193 states have return successors, (363), 252 states have call predecessors, (363), 274 states have call successors, (363) [2021-11-06 15:05:43,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45111 states to 45111 states and 64380 transitions. [2021-11-06 15:05:43,142 INFO L78 Accepts]: Start accepts. Automaton has 45111 states and 64380 transitions. Word has length 138 [2021-11-06 15:05:43,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:43,142 INFO L470 AbstractCegarLoop]: Abstraction has 45111 states and 64380 transitions. [2021-11-06 15:05:43,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:43,143 INFO L276 IsEmpty]: Start isEmpty. Operand 45111 states and 64380 transitions. [2021-11-06 15:05:43,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-06 15:05:43,157 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:43,157 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:05:43,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-06 15:05:43,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-06 15:05:43,375 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:43,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:43,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1238303744, now seen corresponding path program 2 times [2021-11-06 15:05:43,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:43,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212852624] [2021-11-06 15:05:43,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:43,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:43,705 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-06 15:05:43,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:43,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212852624] [2021-11-06 15:05:43,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212852624] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:43,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908629727] [2021-11-06 15:05:43,706 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-06 15:05:43,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:43,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:05:43,720 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 15:05:43,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-06 15:05:45,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-06 15:05:45,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-06 15:05:45,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 4473 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-06 15:05:45,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 15:05:45,406 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-06 15:05:45,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908629727] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:05:45,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 15:05:45,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2021-11-06 15:05:45,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545984215] [2021-11-06 15:05:45,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 15:05:45,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:45,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 15:05:45,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-06 15:05:45,407 INFO L87 Difference]: Start difference. First operand 45111 states and 64380 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:46,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:46,364 INFO L93 Difference]: Finished difference Result 90345 states and 129343 transitions. [2021-11-06 15:05:46,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:05:46,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-06 15:05:46,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:46,455 INFO L225 Difference]: With dead ends: 90345 [2021-11-06 15:05:46,456 INFO L226 Difference]: Without dead ends: 45331 [2021-11-06 15:05:46,531 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-06 15:05:46,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45331 states. [2021-11-06 15:05:47,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45331 to 45155. [2021-11-06 15:05:47,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45155 states, 44673 states have (on average 1.427864705750677) internal successors, (63787), 44742 states have internal predecessors, (63787), 274 states have call successors, (274), 182 states have call predecessors, (274), 193 states have return successors, (363), 252 states have call predecessors, (363), 274 states have call successors, (363) [2021-11-06 15:05:47,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45155 states to 45155 states and 64424 transitions. [2021-11-06 15:05:47,523 INFO L78 Accepts]: Start accepts. Automaton has 45155 states and 64424 transitions. Word has length 140 [2021-11-06 15:05:47,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:47,524 INFO L470 AbstractCegarLoop]: Abstraction has 45155 states and 64424 transitions. [2021-11-06 15:05:47,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:47,524 INFO L276 IsEmpty]: Start isEmpty. Operand 45155 states and 64424 transitions. [2021-11-06 15:05:47,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-06 15:05:47,537 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:47,537 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:05:47,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-06 15:05:47,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-06 15:05:47,754 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:47,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:47,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2050937611, now seen corresponding path program 1 times [2021-11-06 15:05:47,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:47,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319104098] [2021-11-06 15:05:47,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:47,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:48,087 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-06 15:05:48,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:48,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319104098] [2021-11-06 15:05:48,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319104098] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:48,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309457136] [2021-11-06 15:05:48,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:48,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:48,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:05:48,104 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 15:05:48,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-06 15:05:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:50,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 5066 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-06 15:05:50,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 15:05:50,336 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-06 15:05:50,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309457136] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:50,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-06 15:05:50,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-11-06 15:05:50,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118334922] [2021-11-06 15:05:50,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 15:05:50,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:05:50,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 15:05:50,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-06 15:05:50,338 INFO L87 Difference]: Start difference. First operand 45155 states and 64424 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:51,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:05:51,023 INFO L93 Difference]: Finished difference Result 90237 states and 128771 transitions. [2021-11-06 15:05:51,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 15:05:51,024 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2021-11-06 15:05:51,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:05:51,145 INFO L225 Difference]: With dead ends: 90237 [2021-11-06 15:05:51,146 INFO L226 Difference]: Without dead ends: 45179 [2021-11-06 15:05:51,218 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-06 15:05:51,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45179 states. [2021-11-06 15:05:52,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45179 to 45171. [2021-11-06 15:05:52,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45171 states, 44689 states have (on average 1.4277115173756405) internal successors, (63803), 44758 states have internal predecessors, (63803), 274 states have call successors, (274), 182 states have call predecessors, (274), 193 states have return successors, (363), 252 states have call predecessors, (363), 274 states have call successors, (363) [2021-11-06 15:05:52,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45171 states to 45171 states and 64440 transitions. [2021-11-06 15:05:52,259 INFO L78 Accepts]: Start accepts. Automaton has 45171 states and 64440 transitions. Word has length 141 [2021-11-06 15:05:52,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:05:52,259 INFO L470 AbstractCegarLoop]: Abstraction has 45171 states and 64440 transitions. [2021-11-06 15:05:52,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:05:52,260 INFO L276 IsEmpty]: Start isEmpty. Operand 45171 states and 64440 transitions. [2021-11-06 15:05:52,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-06 15:05:52,274 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:05:52,274 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:05:52,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-06 15:05:52,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-06 15:05:52,488 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-06 15:05:52,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:05:52,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1958383079, now seen corresponding path program 2 times [2021-11-06 15:05:52,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:05:52,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148178844] [2021-11-06 15:05:52,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:05:52,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:05:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:05:52,880 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-06 15:05:52,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:05:52,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148178844] [2021-11-06 15:05:52,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148178844] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 15:05:52,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14678575] [2021-11-06 15:05:52,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-06 15:05:52,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 15:05:52,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:05:52,882 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 15:05:52,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process