/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:25:05,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:25:05,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:25:05,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:25:05,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:25:05,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:25:05,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:25:05,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:25:05,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:25:05,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:25:05,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:25:05,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:25:05,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:25:05,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:25:05,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:25:05,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:25:05,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:25:05,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:25:05,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:25:05,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:25:05,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:25:05,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:25:05,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:25:05,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:25:05,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:25:05,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:25:05,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:25:05,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:25:05,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:25:05,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:25:05,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:25:05,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:25:05,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:25:05,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:25:05,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:25:05,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:25:05,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:25:05,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:25:05,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:25:05,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:25:05,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:25:05,763 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 13:25:05,823 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:25:05,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:25:05,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:25:05,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:25:05,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:25:05,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:25:05,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:25:05,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:25:05,831 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:25:05,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:25:05,832 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:25:05,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:25:05,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:25:05,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:25:05,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:25:05,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:25:05,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:25:05,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:25:05,835 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:25:05,835 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:25:05,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:25:05,835 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:25:05,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:25:05,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:25:05,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:25:05,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:25:05,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:25:05,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:25:05,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:25:05,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:25:05,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:25:05,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:25:05,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:25:05,839 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:25:06,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:25:06,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:25:06,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:25:06,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:25:06,341 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:25:06,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-10-16 13:25:06,430 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1799e9505/5a382aa8970c431295c89acabd287949/FLAG2c4734ddd [2022-10-16 13:25:07,546 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:25:07,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-10-16 13:25:07,617 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1799e9505/5a382aa8970c431295c89acabd287949/FLAG2c4734ddd [2022-10-16 13:25:07,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1799e9505/5a382aa8970c431295c89acabd287949 [2022-10-16 13:25:07,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:25:07,931 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:25:07,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:25:07,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:25:07,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:25:07,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:25:07" (1/1) ... [2022-10-16 13:25:07,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b4775c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:07, skipping insertion in model container [2022-10-16 13:25:07,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:25:07" (1/1) ... [2022-10-16 13:25:07,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:25:08,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:25:08,724 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2022-10-16 13:25:08,726 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3835-3836] [2022-10-16 13:25:09,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[119274,119287] [2022-10-16 13:25:10,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:25:10,335 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:25:10,473 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2022-10-16 13:25:10,474 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3835-3836] [2022-10-16 13:25:10,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[119274,119287] [2022-10-16 13:25:10,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:25:10,979 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:25:10,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:10 WrapperNode [2022-10-16 13:25:10,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:25:10,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:25:10,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:25:10,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:25:10,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:10" (1/1) ... [2022-10-16 13:25:11,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:10" (1/1) ... [2022-10-16 13:25:11,481 INFO L138 Inliner]: procedures = 264, calls = 3505, calls flagged for inlining = 131, calls inlined = 111, statements flattened = 6410 [2022-10-16 13:25:11,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:25:11,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:25:11,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:25:11,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:25:11,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:10" (1/1) ... [2022-10-16 13:25:11,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:10" (1/1) ... [2022-10-16 13:25:11,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:10" (1/1) ... [2022-10-16 13:25:11,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:10" (1/1) ... [2022-10-16 13:25:11,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:10" (1/1) ... [2022-10-16 13:25:11,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:10" (1/1) ... [2022-10-16 13:25:11,834 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:10" (1/1) ... [2022-10-16 13:25:11,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:10" (1/1) ... [2022-10-16 13:25:11,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:25:11,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:25:11,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:25:11,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:25:11,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:10" (1/1) ... [2022-10-16 13:25:11,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:25:11,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:25:11,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 13:25:11,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 13:25:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2022-10-16 13:25:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2022-10-16 13:25:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2022-10-16 13:25:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2022-10-16 13:25:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-10-16 13:25:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-10-16 13:25:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-10-16 13:25:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-16 13:25:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-16 13:25:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-10-16 13:25:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 13:25:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 13:25:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:25:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:25:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-10-16 13:25:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-10-16 13:25:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2022-10-16 13:25:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2022-10-16 13:25:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-16 13:25:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-16 13:25:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-16 13:25:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-16 13:25:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:25:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:25:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-10-16 13:25:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-10-16 13:25:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-10-16 13:25:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-10-16 13:25:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2022-10-16 13:25:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2022-10-16 13:25:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 13:25:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 13:25:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-10-16 13:25:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-10-16 13:25:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:25:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:25:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-10-16 13:25:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-10-16 13:25:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-10-16 13:25:12,035 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-10-16 13:25:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 13:25:12,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 13:25:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:25:12,035 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:25:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-16 13:25:12,036 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-16 13:25:12,036 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2022-10-16 13:25:12,036 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2022-10-16 13:25:12,037 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2022-10-16 13:25:12,037 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2022-10-16 13:25:12,037 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2022-10-16 13:25:12,038 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2022-10-16 13:25:12,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:25:12,038 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-16 13:25:12,039 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-16 13:25:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-16 13:25:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2022-10-16 13:25:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2022-10-16 13:25:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-10-16 13:25:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-10-16 13:25:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:25:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2022-10-16 13:25:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2022-10-16 13:25:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-10-16 13:25:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-10-16 13:25:12,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-16 13:25:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-16 13:25:12,043 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-16 13:25:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-16 13:25:12,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:25:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:25:12,045 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-16 13:25:12,045 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-16 13:25:12,045 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-10-16 13:25:12,045 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-10-16 13:25:12,045 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-16 13:25:12,045 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-16 13:25:12,046 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2022-10-16 13:25:12,046 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2022-10-16 13:25:12,046 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-16 13:25:12,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-16 13:25:12,046 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2022-10-16 13:25:12,046 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2022-10-16 13:25:12,047 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2022-10-16 13:25:12,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2022-10-16 13:25:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-10-16 13:25:12,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-10-16 13:25:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 13:25:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:25:12,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:25:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-16 13:25:12,049 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-16 13:25:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2022-10-16 13:25:12,050 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2022-10-16 13:25:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-16 13:25:12,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-16 13:25:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 13:25:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-10-16 13:25:12,050 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-10-16 13:25:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:25:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2022-10-16 13:25:12,051 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2022-10-16 13:25:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-10-16 13:25:12,051 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-10-16 13:25:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 13:25:12,051 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 13:25:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-16 13:25:12,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-16 13:25:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2022-10-16 13:25:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2022-10-16 13:25:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2022-10-16 13:25:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2022-10-16 13:25:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-16 13:25:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-16 13:25:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-16 13:25:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-16 13:25:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-16 13:25:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-16 13:25:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2022-10-16 13:25:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2022-10-16 13:25:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2022-10-16 13:25:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2022-10-16 13:25:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-10-16 13:25:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-10-16 13:25:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 13:25:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 13:25:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:25:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-16 13:25:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-16 13:25:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2022-10-16 13:25:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2022-10-16 13:25:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2022-10-16 13:25:12,055 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2022-10-16 13:25:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2022-10-16 13:25:12,055 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2022-10-16 13:25:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-16 13:25:12,055 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-16 13:25:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 13:25:12,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 13:25:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2022-10-16 13:25:12,056 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2022-10-16 13:25:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2022-10-16 13:25:12,056 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2022-10-16 13:25:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:25:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:25:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:25:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-16 13:25:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-10-16 13:25:12,057 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-10-16 13:25:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-16 13:25:12,057 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-16 13:25:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-10-16 13:25:12,057 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-10-16 13:25:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2022-10-16 13:25:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2022-10-16 13:25:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-16 13:25:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-16 13:25:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-16 13:25:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-16 13:25:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2022-10-16 13:25:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2022-10-16 13:25:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2022-10-16 13:25:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2022-10-16 13:25:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2022-10-16 13:25:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2022-10-16 13:25:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2022-10-16 13:25:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2022-10-16 13:25:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-16 13:25:12,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-16 13:25:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-16 13:25:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-16 13:25:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:25:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-10-16 13:25:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-10-16 13:25:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-10-16 13:25:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-10-16 13:25:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2022-10-16 13:25:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2022-10-16 13:25:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:25:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:25:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-10-16 13:25:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-10-16 13:25:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 13:25:12,061 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 13:25:12,833 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:25:12,838 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:25:13,052 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:25:25,535 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:25:25,560 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:25:25,561 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 13:25:25,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:25:25 BoogieIcfgContainer [2022-10-16 13:25:25,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:25:25,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:25:25,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:25:25,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:25:25,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:25:07" (1/3) ... [2022-10-16 13:25:25,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d57daf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:25:25, skipping insertion in model container [2022-10-16 13:25:25,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:25:10" (2/3) ... [2022-10-16 13:25:25,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d57daf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:25:25, skipping insertion in model container [2022-10-16 13:25:25,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:25:25" (3/3) ... [2022-10-16 13:25:25,577 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-10-16 13:25:25,600 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:25:25,600 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2022-10-16 13:25:25,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:25:25,711 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@363bd70c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:25:25,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2022-10-16 13:25:25,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 1633 states, 1135 states have (on average 1.39647577092511) internal successors, (1585), 1235 states have internal predecessors, (1585), 330 states have call successors, (330), 82 states have call predecessors, (330), 81 states have return successors, (322), 322 states have call predecessors, (322), 322 states have call successors, (322) [2022-10-16 13:25:25,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-16 13:25:25,766 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:25:25,767 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:25:25,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2022-10-16 13:25:25,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:25:25,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1096397595, now seen corresponding path program 1 times [2022-10-16 13:25:25,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:25:25,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907967794] [2022-10-16 13:25:25,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:25:25,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:25:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:25:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:25:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:25:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:25:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:25:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:25:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:25:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:25:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:25:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:25:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:25:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:25:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:25:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:25:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:25:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 13:25:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:27,444 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-10-16 13:25:27,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:25:27,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907967794] [2022-10-16 13:25:27,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907967794] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:25:27,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:25:27,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:25:27,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066998379] [2022-10-16 13:25:27,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:25:27,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:25:27,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:25:27,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:25:27,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:25:27,497 INFO L87 Difference]: Start difference. First operand has 1633 states, 1135 states have (on average 1.39647577092511) internal successors, (1585), 1235 states have internal predecessors, (1585), 330 states have call successors, (330), 82 states have call predecessors, (330), 81 states have return successors, (322), 322 states have call predecessors, (322), 322 states have call successors, (322) Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 13:25:31,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:33,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:38,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:42,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:44,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:47,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:49,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:54,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:25:54,278 INFO L93 Difference]: Finished difference Result 4414 states and 6206 transitions. [2022-10-16 13:25:54,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 13:25:54,281 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 109 [2022-10-16 13:25:54,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:25:54,343 INFO L225 Difference]: With dead ends: 4414 [2022-10-16 13:25:54,344 INFO L226 Difference]: Without dead ends: 2741 [2022-10-16 13:25:54,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:25:54,375 INFO L413 NwaCegarLoop]: 2246 mSDtfsCounter, 2980 mSDsluCounter, 3702 mSDsCounter, 0 mSdLazyCounter, 3626 mSolverCounterSat, 2068 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3246 SdHoareTripleChecker+Valid, 5948 SdHoareTripleChecker+Invalid, 5701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2068 IncrementalHoareTripleChecker+Valid, 3626 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2022-10-16 13:25:54,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3246 Valid, 5948 Invalid, 5701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2068 Valid, 3626 Invalid, 7 Unknown, 0 Unchecked, 25.9s Time] [2022-10-16 13:25:54,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-10-16 13:25:54,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2599. [2022-10-16 13:25:54,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 1852 states have (on average 1.367170626349892) internal successors, (2532), 1937 states have internal predecessors, (2532), 530 states have call successors, (530), 141 states have call predecessors, (530), 141 states have return successors, (530), 529 states have call predecessors, (530), 530 states have call successors, (530) [2022-10-16 13:25:54,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 3592 transitions. [2022-10-16 13:25:54,713 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 3592 transitions. Word has length 109 [2022-10-16 13:25:54,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:25:54,714 INFO L495 AbstractCegarLoop]: Abstraction has 2599 states and 3592 transitions. [2022-10-16 13:25:54,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 13:25:54,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 3592 transitions. [2022-10-16 13:25:54,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 13:25:54,719 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:25:54,719 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:25:54,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:25:54,720 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2022-10-16 13:25:54,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:25:54,720 INFO L85 PathProgramCache]: Analyzing trace with hash 72862978, now seen corresponding path program 1 times [2022-10-16 13:25:54,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:25:54,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481006487] [2022-10-16 13:25:54,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:25:54,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:25:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:25:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:25:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:25:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:25:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:25:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:25:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:25:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:25:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:25:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:25:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:25:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:25:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:25:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:25:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:25:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-16 13:25:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:55,604 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-10-16 13:25:55,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:25:55,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481006487] [2022-10-16 13:25:55,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481006487] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:25:55,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:25:55,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:25:55,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132139350] [2022-10-16 13:25:55,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:25:55,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:25:55,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:25:55,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:25:55,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:25:55,608 INFO L87 Difference]: Start difference. First operand 2599 states and 3592 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 13:25:58,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:00,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:04,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:06,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:13,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:15,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:17,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:19,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:21,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:26:21,548 INFO L93 Difference]: Finished difference Result 6513 states and 9023 transitions. [2022-10-16 13:26:21,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:26:21,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 112 [2022-10-16 13:26:21,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:26:21,582 INFO L225 Difference]: With dead ends: 6513 [2022-10-16 13:26:21,582 INFO L226 Difference]: Without dead ends: 3947 [2022-10-16 13:26:21,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:26:21,596 INFO L413 NwaCegarLoop]: 2185 mSDtfsCounter, 2190 mSDsluCounter, 3651 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 1194 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2324 SdHoareTripleChecker+Valid, 5836 SdHoareTripleChecker+Invalid, 3191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1194 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:26:21,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2324 Valid, 5836 Invalid, 3191 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1194 Valid, 1989 Invalid, 8 Unknown, 0 Unchecked, 25.4s Time] [2022-10-16 13:26:21,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3947 states. [2022-10-16 13:26:21,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3947 to 3793. [2022-10-16 13:26:21,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3793 states, 2747 states have (on average 1.3680378594830724) internal successors, (3758), 2835 states have internal predecessors, (3758), 747 states have call successors, (747), 223 states have call predecessors, (747), 223 states have return successors, (747), 745 states have call predecessors, (747), 747 states have call successors, (747) [2022-10-16 13:26:21,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3793 states to 3793 states and 5252 transitions. [2022-10-16 13:26:21,817 INFO L78 Accepts]: Start accepts. Automaton has 3793 states and 5252 transitions. Word has length 112 [2022-10-16 13:26:21,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:26:21,818 INFO L495 AbstractCegarLoop]: Abstraction has 3793 states and 5252 transitions. [2022-10-16 13:26:21,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 13:26:21,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3793 states and 5252 transitions. [2022-10-16 13:26:21,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 13:26:21,829 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:26:21,831 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:26:21,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:26:21,833 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2022-10-16 13:26:21,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:26:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash -458160447, now seen corresponding path program 1 times [2022-10-16 13:26:21,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:26:21,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245108038] [2022-10-16 13:26:21,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:26:21,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:26:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:26:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:26:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:26:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:26:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:26:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:26:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:26:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:26:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:26:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:26:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:26:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:26:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:26:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:26:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:26:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 13:26:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-10-16 13:26:22,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:26:22,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245108038] [2022-10-16 13:26:22,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245108038] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:26:22,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:26:22,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:26:22,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523201043] [2022-10-16 13:26:22,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:26:22,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:26:22,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:26:22,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:26:22,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:26:22,550 INFO L87 Difference]: Start difference. First operand 3793 states and 5252 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 13:26:25,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:27,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:37,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:39,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:41,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:43,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:46,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:26:46,922 INFO L93 Difference]: Finished difference Result 10867 states and 15102 transitions. [2022-10-16 13:26:46,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:26:46,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 118 [2022-10-16 13:26:46,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:26:46,984 INFO L225 Difference]: With dead ends: 10867 [2022-10-16 13:26:46,984 INFO L226 Difference]: Without dead ends: 7111 [2022-10-16 13:26:47,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:26:47,008 INFO L413 NwaCegarLoop]: 2948 mSDtfsCounter, 2549 mSDsluCounter, 4333 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 1261 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2782 SdHoareTripleChecker+Valid, 7281 SdHoareTripleChecker+Invalid, 3674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1261 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:26:47,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2782 Valid, 7281 Invalid, 3674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1261 Valid, 2407 Invalid, 6 Unknown, 0 Unchecked, 23.8s Time] [2022-10-16 13:26:47,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7111 states. [2022-10-16 13:26:47,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7111 to 6818. [2022-10-16 13:26:47,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6818 states, 5002 states have (on average 1.3686525389844062) internal successors, (6846), 5101 states have internal predecessors, (6846), 1324 states have call successors, (1324), 416 states have call predecessors, (1324), 416 states have return successors, (1324), 1322 states have call predecessors, (1324), 1324 states have call successors, (1324) [2022-10-16 13:26:47,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6818 states to 6818 states and 9494 transitions. [2022-10-16 13:26:47,493 INFO L78 Accepts]: Start accepts. Automaton has 6818 states and 9494 transitions. Word has length 118 [2022-10-16 13:26:47,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:26:47,494 INFO L495 AbstractCegarLoop]: Abstraction has 6818 states and 9494 transitions. [2022-10-16 13:26:47,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 13:26:47,494 INFO L276 IsEmpty]: Start isEmpty. Operand 6818 states and 9494 transitions. [2022-10-16 13:26:47,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-10-16 13:26:47,500 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:26:47,501 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:26:47,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:26:47,502 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2022-10-16 13:26:47,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:26:47,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1251218853, now seen corresponding path program 1 times [2022-10-16 13:26:47,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:26:47,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142375224] [2022-10-16 13:26:47,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:26:47,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:26:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:26:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:26:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:26:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:26:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:26:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:26:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:26:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:26:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:26:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:26:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:26:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:26:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:26:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:26:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:26:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:26:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 13:26:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:26:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 13:26:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 13:26:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,741 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-10-16 13:26:48,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:26:48,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142375224] [2022-10-16 13:26:48,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142375224] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:26:48,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:26:48,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:26:48,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759603404] [2022-10-16 13:26:48,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:26:48,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:26:48,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:26:48,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:26:48,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:26:48,745 INFO L87 Difference]: Start difference. First operand 6818 states and 9494 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-16 13:26:51,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:53,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:57,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:59,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:27:08,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:27:10,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:27:14,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:14,192 INFO L93 Difference]: Finished difference Result 16949 states and 24388 transitions. [2022-10-16 13:27:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:27:14,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157 [2022-10-16 13:27:14,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:14,267 INFO L225 Difference]: With dead ends: 16949 [2022-10-16 13:27:14,267 INFO L226 Difference]: Without dead ends: 10177 [2022-10-16 13:27:14,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:27:14,292 INFO L413 NwaCegarLoop]: 2898 mSDtfsCounter, 3459 mSDsluCounter, 6644 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 1403 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3724 SdHoareTripleChecker+Valid, 9542 SdHoareTripleChecker+Invalid, 4664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1403 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:14,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3724 Valid, 9542 Invalid, 4664 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1403 Valid, 3255 Invalid, 6 Unknown, 0 Unchecked, 24.6s Time] [2022-10-16 13:27:14,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10177 states. [2022-10-16 13:27:14,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10177 to 6822. [2022-10-16 13:27:14,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6822 states, 5006 states have (on average 1.3683579704354774) internal successors, (6850), 5105 states have internal predecessors, (6850), 1324 states have call successors, (1324), 416 states have call predecessors, (1324), 416 states have return successors, (1324), 1322 states have call predecessors, (1324), 1324 states have call successors, (1324) [2022-10-16 13:27:14,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6822 states to 6822 states and 9498 transitions. [2022-10-16 13:27:14,852 INFO L78 Accepts]: Start accepts. Automaton has 6822 states and 9498 transitions. Word has length 157 [2022-10-16 13:27:14,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:14,853 INFO L495 AbstractCegarLoop]: Abstraction has 6822 states and 9498 transitions. [2022-10-16 13:27:14,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-16 13:27:14,854 INFO L276 IsEmpty]: Start isEmpty. Operand 6822 states and 9498 transitions. [2022-10-16 13:27:14,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-10-16 13:27:14,858 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:14,858 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:27:14,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:27:14,859 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2022-10-16 13:27:14,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:14,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1313129700, now seen corresponding path program 1 times [2022-10-16 13:27:14,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:14,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657805125] [2022-10-16 13:27:14,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:14,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:27:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:27:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:27:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:27:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:27:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:27:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:27:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:27:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:27:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:27:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:27:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:27:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:27:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:27:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:27:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:27:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 13:27:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:27:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-16 13:27:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 13:27:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-16 13:27:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 13:27:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-10-16 13:27:15,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:15,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657805125] [2022-10-16 13:27:15,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657805125] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:15,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:15,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 13:27:15,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490030908] [2022-10-16 13:27:15,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:15,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:27:15,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:15,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:27:15,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:27:15,764 INFO L87 Difference]: Start difference. First operand 6822 states and 9498 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 13:27:18,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:27:20,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:27:24,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:27:33,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:27:35,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:27:38,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:38,237 INFO L93 Difference]: Finished difference Result 13933 states and 19500 transitions. [2022-10-16 13:27:38,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 13:27:38,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 161 [2022-10-16 13:27:38,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:38,284 INFO L225 Difference]: With dead ends: 13933 [2022-10-16 13:27:38,284 INFO L226 Difference]: Without dead ends: 7133 [2022-10-16 13:27:38,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:27:38,307 INFO L413 NwaCegarLoop]: 2002 mSDtfsCounter, 1286 mSDsluCounter, 5763 mSDsCounter, 0 mSdLazyCounter, 4600 mSolverCounterSat, 1180 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 7765 SdHoareTripleChecker+Invalid, 5785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1180 IncrementalHoareTripleChecker+Valid, 4600 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:38,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 7765 Invalid, 5785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1180 Valid, 4600 Invalid, 5 Unknown, 0 Unchecked, 21.8s Time] [2022-10-16 13:27:38,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7133 states. [2022-10-16 13:27:38,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7133 to 6822. [2022-10-16 13:27:38,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6822 states, 5006 states have (on average 1.3667598881342389) internal successors, (6842), 5105 states have internal predecessors, (6842), 1324 states have call successors, (1324), 416 states have call predecessors, (1324), 416 states have return successors, (1324), 1322 states have call predecessors, (1324), 1324 states have call successors, (1324) [2022-10-16 13:27:38,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6822 states to 6822 states and 9490 transitions. [2022-10-16 13:27:38,840 INFO L78 Accepts]: Start accepts. Automaton has 6822 states and 9490 transitions. Word has length 161 [2022-10-16 13:27:38,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:38,841 INFO L495 AbstractCegarLoop]: Abstraction has 6822 states and 9490 transitions. [2022-10-16 13:27:38,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 13:27:38,842 INFO L276 IsEmpty]: Start isEmpty. Operand 6822 states and 9490 transitions. [2022-10-16 13:27:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-10-16 13:27:38,847 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:38,848 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:27:38,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:27:38,848 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2022-10-16 13:27:38,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:38,849 INFO L85 PathProgramCache]: Analyzing trace with hash -2015544831, now seen corresponding path program 1 times [2022-10-16 13:27:38,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:38,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992658203] [2022-10-16 13:27:38,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:38,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:27:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:27:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:27:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:27:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:27:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:27:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:27:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:27:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:27:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:27:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:27:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:27:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:27:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:27:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:27:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:27:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 13:27:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:27:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 13:27:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-16 13:27:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:27:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-10-16 13:27:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:39,755 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-10-16 13:27:39,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:39,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992658203] [2022-10-16 13:27:39,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992658203] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:39,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:39,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:27:39,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536190475] [2022-10-16 13:27:39,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:39,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:27:39,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:39,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:27:39,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:27:39,758 INFO L87 Difference]: Start difference. First operand 6822 states and 9490 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 13:27:42,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:27:45,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:27:51,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:27:53,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:53,713 INFO L93 Difference]: Finished difference Result 13875 states and 19402 transitions. [2022-10-16 13:27:53,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:27:53,714 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 167 [2022-10-16 13:27:53,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:53,747 INFO L225 Difference]: With dead ends: 13875 [2022-10-16 13:27:53,747 INFO L226 Difference]: Without dead ends: 7091 [2022-10-16 13:27:53,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:27:53,771 INFO L413 NwaCegarLoop]: 2057 mSDtfsCounter, 970 mSDsluCounter, 3643 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 1078 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 5700 SdHoareTripleChecker+Invalid, 2870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1078 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:53,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 5700 Invalid, 2870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1078 Valid, 1789 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2022-10-16 13:27:53,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2022-10-16 13:27:54,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 6762. [2022-10-16 13:27:54,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6762 states, 4960 states have (on average 1.3681451612903226) internal successors, (6786), 5061 states have internal predecessors, (6786), 1316 states have call successors, (1316), 410 states have call predecessors, (1316), 410 states have return successors, (1316), 1312 states have call predecessors, (1316), 1316 states have call successors, (1316) [2022-10-16 13:27:54,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6762 states to 6762 states and 9418 transitions. [2022-10-16 13:27:54,318 INFO L78 Accepts]: Start accepts. Automaton has 6762 states and 9418 transitions. Word has length 167 [2022-10-16 13:27:54,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:54,318 INFO L495 AbstractCegarLoop]: Abstraction has 6762 states and 9418 transitions. [2022-10-16 13:27:54,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 13:27:54,319 INFO L276 IsEmpty]: Start isEmpty. Operand 6762 states and 9418 transitions. [2022-10-16 13:27:54,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-10-16 13:27:54,324 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:54,325 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:27:54,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 13:27:54,325 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2022-10-16 13:27:54,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:54,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1958225538, now seen corresponding path program 1 times [2022-10-16 13:27:54,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:54,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865162860] [2022-10-16 13:27:54,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:54,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:27:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:27:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:27:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:27:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:27:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:27:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:27:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:27:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:27:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:27:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:27:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:27:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:27:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:27:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:27:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:27:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 13:27:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:27:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 13:27:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-16 13:27:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-16 13:27:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-10-16 13:27:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:27:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,320 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-10-16 13:27:55,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:55,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865162860] [2022-10-16 13:27:55,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865162860] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:55,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:55,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:27:55,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820319060] [2022-10-16 13:27:55,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:55,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:27:55,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:55,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:27:55,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:27:55,324 INFO L87 Difference]: Start difference. First operand 6762 states and 9418 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-10-16 13:27:58,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:00,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:03,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:08,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:10,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:16,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:19,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:25,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:28:25,541 INFO L93 Difference]: Finished difference Result 17996 states and 25145 transitions. [2022-10-16 13:28:25,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 13:28:25,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 169 [2022-10-16 13:28:25,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:28:25,584 INFO L225 Difference]: With dead ends: 17996 [2022-10-16 13:28:25,584 INFO L226 Difference]: Without dead ends: 11280 [2022-10-16 13:28:25,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:28:25,606 INFO L413 NwaCegarLoop]: 2752 mSDtfsCounter, 3766 mSDsluCounter, 5599 mSDsCounter, 0 mSdLazyCounter, 5172 mSolverCounterSat, 2204 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4024 SdHoareTripleChecker+Valid, 8351 SdHoareTripleChecker+Invalid, 7383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2204 IncrementalHoareTripleChecker+Valid, 5172 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:28:25,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4024 Valid, 8351 Invalid, 7383 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2204 Valid, 5172 Invalid, 7 Unknown, 0 Unchecked, 29.3s Time] [2022-10-16 13:28:25,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11280 states. [2022-10-16 13:28:26,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11280 to 10682. [2022-10-16 13:28:26,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10682 states, 7937 states have (on average 1.3628575028348242) internal successors, (10817), 8053 states have internal predecessors, (10817), 2010 states have call successors, (2010), 659 states have call predecessors, (2010), 659 states have return successors, (2010), 2003 states have call predecessors, (2010), 2010 states have call successors, (2010) [2022-10-16 13:28:26,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10682 states to 10682 states and 14837 transitions. [2022-10-16 13:28:26,347 INFO L78 Accepts]: Start accepts. Automaton has 10682 states and 14837 transitions. Word has length 169 [2022-10-16 13:28:26,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:28:26,348 INFO L495 AbstractCegarLoop]: Abstraction has 10682 states and 14837 transitions. [2022-10-16 13:28:26,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-10-16 13:28:26,349 INFO L276 IsEmpty]: Start isEmpty. Operand 10682 states and 14837 transitions. [2022-10-16 13:28:26,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-16 13:28:26,353 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:28:26,354 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:28:26,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 13:28:26,355 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2022-10-16 13:28:26,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:28:26,356 INFO L85 PathProgramCache]: Analyzing trace with hash -420374968, now seen corresponding path program 1 times [2022-10-16 13:28:26,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:28:26,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710542713] [2022-10-16 13:28:26,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:28:26,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:28:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:28:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:28:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:28:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:28:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:28:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:28:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:28:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:28:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:28:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:28:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:28:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:28:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:28:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:28:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:28:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:28:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 13:28:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:28:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 13:28:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-16 13:28:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-16 13:28:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-10-16 13:28:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 13:28:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:28,533 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-10-16 13:28:28,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:28:28,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710542713] [2022-10-16 13:28:28,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710542713] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:28:28,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:28:28,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:28:28,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615472023] [2022-10-16 13:28:28,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:28:28,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:28:28,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:28:28,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:28:28,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:28:28,537 INFO L87 Difference]: Start difference. First operand 10682 states and 14837 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 13:28:31,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:33,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:36,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:38,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:45,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:47,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:28:47,734 INFO L93 Difference]: Finished difference Result 21883 states and 30503 transitions. [2022-10-16 13:28:47,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 13:28:47,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 178 [2022-10-16 13:28:47,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:28:47,778 INFO L225 Difference]: With dead ends: 21883 [2022-10-16 13:28:47,778 INFO L226 Difference]: Without dead ends: 11222 [2022-10-16 13:28:47,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-10-16 13:28:47,800 INFO L413 NwaCegarLoop]: 2065 mSDtfsCounter, 1212 mSDsluCounter, 5117 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 1142 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 7182 SdHoareTripleChecker+Invalid, 3652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1142 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:28:47,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1268 Valid, 7182 Invalid, 3652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1142 Valid, 2505 Invalid, 5 Unknown, 0 Unchecked, 18.5s Time] [2022-10-16 13:28:47,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11222 states. [2022-10-16 13:28:48,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11222 to 10761. [2022-10-16 13:28:48,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10761 states, 8000 states have (on average 1.361375) internal successors, (10891), 8117 states have internal predecessors, (10891), 2020 states have call successors, (2020), 665 states have call predecessors, (2020), 665 states have return successors, (2020), 2012 states have call predecessors, (2020), 2020 states have call successors, (2020) [2022-10-16 13:28:48,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10761 states to 10761 states and 14931 transitions. [2022-10-16 13:28:48,398 INFO L78 Accepts]: Start accepts. Automaton has 10761 states and 14931 transitions. Word has length 178 [2022-10-16 13:28:48,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:28:48,399 INFO L495 AbstractCegarLoop]: Abstraction has 10761 states and 14931 transitions. [2022-10-16 13:28:48,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 13:28:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand 10761 states and 14931 transitions. [2022-10-16 13:28:48,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-16 13:28:48,405 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:28:48,405 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:28:48,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 13:28:48,406 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2022-10-16 13:28:48,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:28:48,407 INFO L85 PathProgramCache]: Analyzing trace with hash 140324810, now seen corresponding path program 1 times [2022-10-16 13:28:48,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:28:48,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858668120] [2022-10-16 13:28:48,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:28:48,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:28:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:28:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:28:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:28:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:28:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:28:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:28:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:28:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:28:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:28:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:28:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:28:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:28:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:28:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:28:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:28:51,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:28:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 13:28:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:28:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 13:28:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-16 13:28:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-16 13:28:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-10-16 13:28:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 13:28:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-10-16 13:28:51,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:28:51,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858668120] [2022-10-16 13:28:51,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858668120] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:28:51,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:28:51,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-16 13:28:51,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16959921] [2022-10-16 13:28:51,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:28:51,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 13:28:51,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:28:51,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 13:28:51,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:28:51,538 INFO L87 Difference]: Start difference. First operand 10761 states and 14931 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 7 states have internal predecessors, (81), 3 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23)