./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.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 ce994d1a73c37780cf760e0a26dafcaa4c1158119509e83a0962528ef5890c5e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 16:26:02,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 16:26:02,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 16:26:02,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 16:26:02,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 16:26:02,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 16:26:02,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 16:26:02,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 16:26:02,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 16:26:02,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 16:26:02,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 16:26:02,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 16:26:02,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 16:26:02,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 16:26:02,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 16:26:02,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 16:26:02,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 16:26:02,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 16:26:02,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 16:26:03,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 16:26:03,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 16:26:03,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 16:26:03,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 16:26:03,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 16:26:03,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 16:26:03,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 16:26:03,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 16:26:03,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 16:26:03,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 16:26:03,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 16:26:03,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 16:26:03,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 16:26:03,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 16:26:03,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 16:26:03,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 16:26:03,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 16:26:03,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 16:26:03,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 16:26:03,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 16:26:03,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 16:26:03,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 16:26:03,020 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 16:26:03,047 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 16:26:03,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 16:26:03,047 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 16:26:03,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 16:26:03,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 16:26:03,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 16:26:03,049 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 16:26:03,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 16:26:03,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 16:26:03,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 16:26:03,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 16:26:03,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 16:26:03,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 16:26:03,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 16:26:03,051 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 16:26:03,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 16:26:03,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 16:26:03,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 16:26:03,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 16:26:03,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:26:03,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 16:26:03,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 16:26:03,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 16:26:03,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 16:26:03,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 16:26:03,053 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 16:26:03,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 16:26:03,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 16:26:03,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 16:26:03,054 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce994d1a73c37780cf760e0a26dafcaa4c1158119509e83a0962528ef5890c5e [2021-11-06 16:26:03,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 16:26:03,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 16:26:03,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 16:26:03,234 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 16:26:03,235 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 16:26:03,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2021-11-06 16:26:03,285 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f02f0076/bc50f175f59a4020bcc2547c5a08f484/FLAGeac897320 [2021-11-06 16:26:03,935 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 16:26:03,936 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2021-11-06 16:26:03,974 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f02f0076/bc50f175f59a4020bcc2547c5a08f484/FLAGeac897320 [2021-11-06 16:26:04,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f02f0076/bc50f175f59a4020bcc2547c5a08f484 [2021-11-06 16:26:04,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 16:26:04,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 16:26:04,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 16:26:04,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 16:26:04,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 16:26:04,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:26:04" (1/1) ... [2021-11-06 16:26:04,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2b780f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:26:04, skipping insertion in model container [2021-11-06 16:26:04,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:26:04" (1/1) ... [2021-11-06 16:26:04,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 16:26:04,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 16:26:06,368 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i[374492,374505] [2021-11-06 16:26:06,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:26:06,567 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 16:26:06,866 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i[374492,374505] [2021-11-06 16:26:06,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:26:06,992 INFO L208 MainTranslator]: Completed translation [2021-11-06 16:26:06,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:26:06 WrapperNode [2021-11-06 16:26:06,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 16:26:06,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 16:26:06,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 16:26:06,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 16:26:06,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:26:06" (1/1) ... [2021-11-06 16:26:07,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:26:06" (1/1) ... [2021-11-06 16:26:08,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 16:26:08,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 16:26:08,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 16:26:08,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 16:26:08,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:26:06" (1/1) ... [2021-11-06 16:26:08,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:26:06" (1/1) ... [2021-11-06 16:26:09,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:26:06" (1/1) ... [2021-11-06 16:26:09,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:26:06" (1/1) ... [2021-11-06 16:26:09,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:26:06" (1/1) ... [2021-11-06 16:26:10,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:26:06" (1/1) ... [2021-11-06 16:26:10,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:26:06" (1/1) ... [2021-11-06 16:26:10,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 16:26:10,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 16:26:10,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 16:26:10,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 16:26:10,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:26:06" (1/1) ... [2021-11-06 16:26:10,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:26:10,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 16:26:10,498 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 16:26:10,504 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 16:26:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-06 16:26:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_request_effect_upload [2021-11-06 16:26:10,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_request_effect_upload [2021-11-06 16:26:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure hid_suspend [2021-11-06 16:26:10,526 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_suspend [2021-11-06 16:26:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 16:26:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume_common [2021-11-06 16:26:10,527 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume_common [2021-11-06 16:26:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 16:26:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 16:26:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure hid_pidff_init [2021-11-06 16:26:10,527 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_pidff_init [2021-11-06 16:26:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 16:26:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 16:26:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-06 16:26:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-06 16:26:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 16:26:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_check_autocenter [2021-11-06 16:26:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_check_autocenter [2021-11-06 16:26:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 16:26:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 16:26:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 16:26:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 16:26:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_wait [2021-11-06 16:26:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_wait [2021-11-06 16:26:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 16:26:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 16:26:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 16:26:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 16:26:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 16:26:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 16:26:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 16:26:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure hid_reset_resume [2021-11-06 16:26:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_reset_resume [2021-11-06 16:26:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 16:26:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_reset [2021-11-06 16:26:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_reset [2021-11-06 16:26:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 16:26:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume [2021-11-06 16:26:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume [2021-11-06 16:27:33,036 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 16:27:33,037 INFO L299 CfgBuilder]: Removed 10214 assume(true) statements. [2021-11-06 16:27:33,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:27:33 BoogieIcfgContainer [2021-11-06 16:27:33,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 16:27:33,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 16:27:33,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 16:27:33,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 16:27:33,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 04:26:04" (1/3) ... [2021-11-06 16:27:33,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652ff73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:27:33, skipping insertion in model container [2021-11-06 16:27:33,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:26:06" (2/3) ... [2021-11-06 16:27:33,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652ff73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:27:33, skipping insertion in model container [2021-11-06 16:27:33,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:27:33" (3/3) ... [2021-11-06 16:27:33,058 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2021-11-06 16:27:33,061 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 16:27:33,061 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2021-11-06 16:27:33,123 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 16:27:33,131 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 16:27:33,132 INFO L340 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2021-11-06 16:27:33,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 10314 states, 10239 states have (on average 1.4098056450825276) internal successors, (14435), 10275 states have internal predecessors, (14435), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-06 16:27:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-06 16:27:33,262 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:27:33,263 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 16:27:33,264 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-06 16:27:33,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:27:33,269 INFO L85 PathProgramCache]: Analyzing trace with hash 599881239, now seen corresponding path program 1 times [2021-11-06 16:27:33,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:27:33,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479338915] [2021-11-06 16:27:33,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:27:33,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:27:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:27:33,909 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 16:27:33,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:27:33,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479338915] [2021-11-06 16:27:33,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479338915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:27:33,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:27:33,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:27:33,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403244977] [2021-11-06 16:27:33,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 16:27:33,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:27:33,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 16:27:33,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 16:27:33,946 INFO L87 Difference]: Start difference. First operand has 10314 states, 10239 states have (on average 1.4098056450825276) internal successors, (14435), 10275 states have internal predecessors, (14435), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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 16:27:34,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:27:34,357 INFO L93 Difference]: Finished difference Result 20624 states and 29005 transitions. [2021-11-06 16:27:34,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 16:27:34,358 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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 68 [2021-11-06 16:27:34,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:27:34,414 INFO L225 Difference]: With dead ends: 20624 [2021-11-06 16:27:34,414 INFO L226 Difference]: Without dead ends: 10301 [2021-11-06 16:27:34,450 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 16:27:34,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10301 states. [2021-11-06 16:27:34,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10301 to 10301. [2021-11-06 16:27:34,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10301 states, 10227 states have (on average 1.3901437371663243) internal successors, (14217), 10262 states have internal predecessors, (14217), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-06 16:27:34,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10301 states to 10301 states and 14273 transitions. [2021-11-06 16:27:34,741 INFO L78 Accepts]: Start accepts. Automaton has 10301 states and 14273 transitions. Word has length 68 [2021-11-06 16:27:34,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:27:34,741 INFO L470 AbstractCegarLoop]: Abstraction has 10301 states and 14273 transitions. [2021-11-06 16:27:34,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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 16:27:34,743 INFO L276 IsEmpty]: Start isEmpty. Operand 10301 states and 14273 transitions. [2021-11-06 16:27:34,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-06 16:27:34,746 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:27:34,747 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 16:27:34,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 16:27:34,748 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-06 16:27:34,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:27:34,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1714873313, now seen corresponding path program 1 times [2021-11-06 16:27:34,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:27:34,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978403375] [2021-11-06 16:27:34,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:27:34,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:27:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:27:35,103 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 16:27:35,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:27:35,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978403375] [2021-11-06 16:27:35,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978403375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:27:35,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:27:35,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:27:35,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767953948] [2021-11-06 16:27:35,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:27:35,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:27:35,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:27:35,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:27:35,110 INFO L87 Difference]: Start difference. First operand 10301 states and 14273 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 16:27:35,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:27:35,678 INFO L93 Difference]: Finished difference Result 26335 states and 36561 transitions. [2021-11-06 16:27:35,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:27:35,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2021-11-06 16:27:35,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:27:35,737 INFO L225 Difference]: With dead ends: 26335 [2021-11-06 16:27:35,737 INFO L226 Difference]: Without dead ends: 16088 [2021-11-06 16:27:35,760 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 16:27:35,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16088 states. [2021-11-06 16:27:36,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16088 to 16003. [2021-11-06 16:27:36,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16003 states, 15890 states have (on average 1.3958464443045941) internal successors, (22180), 15926 states have internal predecessors, (22180), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2021-11-06 16:27:36,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16003 states to 16003 states and 22292 transitions. [2021-11-06 16:27:36,071 INFO L78 Accepts]: Start accepts. Automaton has 16003 states and 22292 transitions. Word has length 68 [2021-11-06 16:27:36,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:27:36,071 INFO L470 AbstractCegarLoop]: Abstraction has 16003 states and 22292 transitions. [2021-11-06 16:27:36,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 16:27:36,072 INFO L276 IsEmpty]: Start isEmpty. Operand 16003 states and 22292 transitions. [2021-11-06 16:27:36,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-06 16:27:36,073 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:27:36,073 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, 1, 1, 1, 1] [2021-11-06 16:27:36,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 16:27:36,073 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-06 16:27:36,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:27:36,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1841844260, now seen corresponding path program 1 times [2021-11-06 16:27:36,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:27:36,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850160369] [2021-11-06 16:27:36,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:27:36,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:27:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:27:36,370 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 16:27:36,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:27:36,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850160369] [2021-11-06 16:27:36,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850160369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:27:36,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:27:36,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:27:36,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180663218] [2021-11-06 16:27:36,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:27:36,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:27:36,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:27:36,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:27:36,373 INFO L87 Difference]: Start difference. First operand 16003 states and 22292 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 16:27:39,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:27:39,166 INFO L93 Difference]: Finished difference Result 47752 states and 66562 transitions. [2021-11-06 16:27:39,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:27:39,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2021-11-06 16:27:39,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:27:39,263 INFO L225 Difference]: With dead ends: 47752 [2021-11-06 16:27:39,263 INFO L226 Difference]: Without dead ends: 31803 [2021-11-06 16:27:39,311 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 16:27:39,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31803 states. [2021-11-06 16:27:39,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31803 to 31745. [2021-11-06 16:27:39,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31745 states, 31554 states have (on average 1.3968435063700324) internal successors, (44076), 31592 states have internal predecessors, (44076), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2021-11-06 16:27:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31745 states to 31745 states and 44300 transitions. [2021-11-06 16:27:39,996 INFO L78 Accepts]: Start accepts. Automaton has 31745 states and 44300 transitions. Word has length 72 [2021-11-06 16:27:39,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:27:40,000 INFO L470 AbstractCegarLoop]: Abstraction has 31745 states and 44300 transitions. [2021-11-06 16:27:40,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 16:27:40,001 INFO L276 IsEmpty]: Start isEmpty. Operand 31745 states and 44300 transitions. [2021-11-06 16:27:40,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-06 16:27:40,005 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:27:40,005 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:27:40,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 16:27:40,005 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-06 16:27:40,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:27:40,006 INFO L85 PathProgramCache]: Analyzing trace with hash -532712366, now seen corresponding path program 1 times [2021-11-06 16:27:40,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:27:40,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121515193] [2021-11-06 16:27:40,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:27:40,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:27:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:27:40,464 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 16:27:40,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:27:40,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121515193] [2021-11-06 16:27:40,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121515193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:27:40,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:27:40,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 16:27:40,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891495299] [2021-11-06 16:27:40,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 16:27:40,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:27:40,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 16:27:40,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 16:27:40,467 INFO L87 Difference]: Start difference. First operand 31745 states and 44300 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 16:27:41,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:27:41,537 INFO L93 Difference]: Finished difference Result 87647 states and 122398 transitions. [2021-11-06 16:27:41,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 16:27:41,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 77 [2021-11-06 16:27:41,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:27:41,700 INFO L225 Difference]: With dead ends: 87647 [2021-11-06 16:27:41,700 INFO L226 Difference]: Without dead ends: 55956 [2021-11-06 16:27:41,758 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 16:27:41,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55956 states. [2021-11-06 16:27:42,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55956 to 31745. [2021-11-06 16:27:42,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31745 states, 31554 states have (on average 1.3967801229638082) internal successors, (44074), 31592 states have internal predecessors, (44074), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2021-11-06 16:27:42,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31745 states to 31745 states and 44298 transitions. [2021-11-06 16:27:42,826 INFO L78 Accepts]: Start accepts. Automaton has 31745 states and 44298 transitions. Word has length 77 [2021-11-06 16:27:42,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:27:42,827 INFO L470 AbstractCegarLoop]: Abstraction has 31745 states and 44298 transitions. [2021-11-06 16:27:42,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 16:27:42,827 INFO L276 IsEmpty]: Start isEmpty. Operand 31745 states and 44298 transitions. [2021-11-06 16:27:42,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-06 16:27:42,830 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:27:42,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:27:42,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 16:27:42,830 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-06 16:27:42,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:27:42,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1805172135, now seen corresponding path program 1 times [2021-11-06 16:27:42,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:27:42,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305082227] [2021-11-06 16:27:42,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:27:42,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:27:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:27:43,134 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 16:27:43,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:27:43,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305082227] [2021-11-06 16:27:43,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305082227] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:27:43,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:27:43,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 16:27:43,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986961723] [2021-11-06 16:27:43,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 16:27:43,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:27:43,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 16:27:43,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 16:27:43,136 INFO L87 Difference]: Start difference. First operand 31745 states and 44298 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 16:27:44,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:27:44,293 INFO L93 Difference]: Finished difference Result 74068 states and 103355 transitions. [2021-11-06 16:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 16:27:44,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 84 [2021-11-06 16:27:44,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:27:44,400 INFO L225 Difference]: With dead ends: 74068 [2021-11-06 16:27:44,400 INFO L226 Difference]: Without dead ends: 42377 [2021-11-06 16:27:44,450 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 16:27:44,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42377 states. [2021-11-06 16:27:45,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42377 to 31747. [2021-11-06 16:27:45,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31747 states, 31556 states have (on average 1.396723285587527) internal successors, (44075), 31594 states have internal predecessors, (44075), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2021-11-06 16:27:45,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31747 states to 31747 states and 44299 transitions. [2021-11-06 16:27:45,367 INFO L78 Accepts]: Start accepts. Automaton has 31747 states and 44299 transitions. Word has length 84 [2021-11-06 16:27:45,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:27:45,367 INFO L470 AbstractCegarLoop]: Abstraction has 31747 states and 44299 transitions. [2021-11-06 16:27:45,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 16:27:45,367 INFO L276 IsEmpty]: Start isEmpty. Operand 31747 states and 44299 transitions. [2021-11-06 16:27:45,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-06 16:27:45,369 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:27:45,370 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:27:45,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 16:27:45,370 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-06 16:27:45,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:27:45,370 INFO L85 PathProgramCache]: Analyzing trace with hash 23781698, now seen corresponding path program 1 times [2021-11-06 16:27:45,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:27:45,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513053296] [2021-11-06 16:27:45,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:27:45,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:27:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:27:45,705 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 16:27:45,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:27:45,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513053296] [2021-11-06 16:27:45,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513053296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:27:45,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:27:45,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:27:45,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798852609] [2021-11-06 16:27:45,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:27:45,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:27:45,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:27:45,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:27:45,709 INFO L87 Difference]: Start difference. First operand 31747 states and 44299 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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 16:27:46,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:27:46,471 INFO L93 Difference]: Finished difference Result 41723 states and 58221 transitions. [2021-11-06 16:27:46,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:27:46,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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 88 [2021-11-06 16:27:46,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:27:46,577 INFO L225 Difference]: With dead ends: 41723 [2021-11-06 16:27:46,578 INFO L226 Difference]: Without dead ends: 41713 [2021-11-06 16:27:46,597 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:27:46,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41713 states. [2021-11-06 16:27:47,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41713 to 41709. [2021-11-06 16:27:47,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41709 states, 41419 states have (on average 1.396388131050967) internal successors, (57837), 41456 states have internal predecessors, (57837), 180 states have call successors, (180), 80 states have call predecessors, (180), 80 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2021-11-06 16:27:47,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41709 states to 41709 states and 58197 transitions. [2021-11-06 16:27:47,571 INFO L78 Accepts]: Start accepts. Automaton has 41709 states and 58197 transitions. Word has length 88 [2021-11-06 16:27:47,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:27:47,572 INFO L470 AbstractCegarLoop]: Abstraction has 41709 states and 58197 transitions. [2021-11-06 16:27:47,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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 16:27:47,572 INFO L276 IsEmpty]: Start isEmpty. Operand 41709 states and 58197 transitions. [2021-11-06 16:27:47,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-06 16:27:47,575 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:27:47,575 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:27:47,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 16:27:47,575 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-06 16:27:47,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:27:47,576 INFO L85 PathProgramCache]: Analyzing trace with hash 737272642, now seen corresponding path program 1 times [2021-11-06 16:27:47,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:27:47,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420666913] [2021-11-06 16:27:47,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:27:47,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:27:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:27:48,226 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 16:27:48,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:27:48,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420666913] [2021-11-06 16:27:48,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420666913] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:27:48,227 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:27:48,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:27:48,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971013633] [2021-11-06 16:27:48,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:27:48,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:27:48,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:27:48,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:27:48,229 INFO L87 Difference]: Start difference. First operand 41709 states and 58197 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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 16:27:48,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:27:48,957 INFO L93 Difference]: Finished difference Result 41709 states and 58197 transitions. [2021-11-06 16:27:48,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:27:48,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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 89 [2021-11-06 16:27:48,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:27:49,049 INFO L225 Difference]: With dead ends: 41709 [2021-11-06 16:27:49,050 INFO L226 Difference]: Without dead ends: 41695 [2021-11-06 16:27:49,067 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:27:49,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41695 states. [2021-11-06 16:27:50,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41695 to 41695. [2021-11-06 16:27:50,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41695 states, 41412 states have (on average 1.3958514440258862) internal successors, (57805), 41442 states have internal predecessors, (57805), 180 states have call successors, (180), 80 states have call predecessors, (180), 80 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2021-11-06 16:27:50,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41695 states to 41695 states and 58165 transitions. [2021-11-06 16:27:50,136 INFO L78 Accepts]: Start accepts. Automaton has 41695 states and 58165 transitions. Word has length 89 [2021-11-06 16:27:50,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:27:50,137 INFO L470 AbstractCegarLoop]: Abstraction has 41695 states and 58165 transitions. [2021-11-06 16:27:50,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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 16:27:50,137 INFO L276 IsEmpty]: Start isEmpty. Operand 41695 states and 58165 transitions. [2021-11-06 16:27:50,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-06 16:27:50,139 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:27:50,139 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, 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 16:27:50,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 16:27:50,140 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-06 16:27:50,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:27:50,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1380655436, now seen corresponding path program 1 times [2021-11-06 16:27:50,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:27:50,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646211276] [2021-11-06 16:27:50,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:27:50,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:27:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:27:50,455 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 16:27:50,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:27:50,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646211276] [2021-11-06 16:27:50,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646211276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:27:50,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:27:50,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:27:50,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25670565] [2021-11-06 16:27:50,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:27:50,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:27:50,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:27:50,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:27:50,458 INFO L87 Difference]: Start difference. First operand 41695 states and 58165 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 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 16:27:51,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:27:51,273 INFO L93 Difference]: Finished difference Result 41695 states and 58165 transitions. [2021-11-06 16:27:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:27:51,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 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 90 [2021-11-06 16:27:51,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:27:51,362 INFO L225 Difference]: With dead ends: 41695 [2021-11-06 16:27:51,362 INFO L226 Difference]: Without dead ends: 41693 [2021-11-06 16:27:51,381 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:27:51,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41693 states. [2021-11-06 16:27:52,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41693 to 41693. [2021-11-06 16:27:52,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41693 states, 41411 states have (on average 1.3958368549419236) internal successors, (57803), 41440 states have internal predecessors, (57803), 180 states have call successors, (180), 80 states have call predecessors, (180), 80 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2021-11-06 16:27:52,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41693 states to 41693 states and 58163 transitions. [2021-11-06 16:27:52,666 INFO L78 Accepts]: Start accepts. Automaton has 41693 states and 58163 transitions. Word has length 90 [2021-11-06 16:27:52,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:27:52,667 INFO L470 AbstractCegarLoop]: Abstraction has 41693 states and 58163 transitions. [2021-11-06 16:27:52,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 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 16:27:52,667 INFO L276 IsEmpty]: Start isEmpty. Operand 41693 states and 58163 transitions. [2021-11-06 16:27:52,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-06 16:27:52,670 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:27:52,670 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, 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 16:27:52,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 16:27:52,671 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-06 16:27:52,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:27:52,671 INFO L85 PathProgramCache]: Analyzing trace with hash -149314420, now seen corresponding path program 1 times [2021-11-06 16:27:52,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:27:52,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430914556] [2021-11-06 16:27:52,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:27:52,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:27:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:27:52,952 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 16:27:52,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:27:52,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430914556] [2021-11-06 16:27:52,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430914556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:27:52,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:27:52,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:27:52,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614675674] [2021-11-06 16:27:52,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:27:52,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:27:52,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:27:52,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:27:52,954 INFO L87 Difference]: Start difference. First operand 41693 states and 58163 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 16:27:53,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:27:53,853 INFO L93 Difference]: Finished difference Result 41693 states and 58163 transitions. [2021-11-06 16:27:53,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:27:53,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 91 [2021-11-06 16:27:53,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:27:53,931 INFO L225 Difference]: With dead ends: 41693 [2021-11-06 16:27:53,931 INFO L226 Difference]: Without dead ends: 41691 [2021-11-06 16:27:53,944 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:27:53,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41691 states. [2021-11-06 16:27:54,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41691 to 41691. [2021-11-06 16:27:54,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41691 states, 41410 states have (on average 1.3958222651533445) internal successors, (57801), 41438 states have internal predecessors, (57801), 180 states have call successors, (180), 80 states have call predecessors, (180), 80 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2021-11-06 16:27:55,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41691 states to 41691 states and 58161 transitions. [2021-11-06 16:27:55,017 INFO L78 Accepts]: Start accepts. Automaton has 41691 states and 58161 transitions. Word has length 91 [2021-11-06 16:27:55,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:27:55,018 INFO L470 AbstractCegarLoop]: Abstraction has 41691 states and 58161 transitions. [2021-11-06 16:27:55,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 16:27:55,018 INFO L276 IsEmpty]: Start isEmpty. Operand 41691 states and 58161 transitions. [2021-11-06 16:27:55,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-06 16:27:55,022 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:27:55,022 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, 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 16:27:55,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 16:27:55,023 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-06 16:27:55,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:27:55,023 INFO L85 PathProgramCache]: Analyzing trace with hash -333739690, now seen corresponding path program 1 times [2021-11-06 16:27:55,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:27:55,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619996961] [2021-11-06 16:27:55,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:27:55,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:27:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:27:55,505 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 16:27:55,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:27:55,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619996961] [2021-11-06 16:27:55,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619996961] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:27:55,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:27:55,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:27:55,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154592107] [2021-11-06 16:27:55,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:27:55,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:27:55,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:27:55,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:27:55,507 INFO L87 Difference]: Start difference. First operand 41691 states and 58161 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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 16:27:56,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:27:56,280 INFO L93 Difference]: Finished difference Result 41691 states and 58161 transitions. [2021-11-06 16:27:56,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:27:56,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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 92 [2021-11-06 16:27:56,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:27:56,369 INFO L225 Difference]: With dead ends: 41691 [2021-11-06 16:27:56,369 INFO L226 Difference]: Without dead ends: 41689 [2021-11-06 16:27:56,389 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:27:56,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41689 states.