./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash aaa391796caf9ffd02d820d63142c08953b50843acf6dbe45cefeca4ae26da3b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 13:35:58,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 13:35:58,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 13:35:58,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 13:35:58,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 13:35:58,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 13:35:58,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 13:35:58,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 13:35:58,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 13:35:58,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 13:35:58,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 13:35:58,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 13:35:58,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 13:35:58,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 13:35:58,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 13:35:58,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 13:35:58,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 13:35:58,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 13:35:58,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 13:35:58,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 13:35:58,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 13:35:58,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 13:35:58,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 13:35:58,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 13:35:58,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 13:35:58,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 13:35:58,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 13:35:58,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 13:35:58,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 13:35:58,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 13:35:58,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 13:35:58,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 13:35:58,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 13:35:58,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 13:35:58,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 13:35:58,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 13:35:58,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 13:35:58,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 13:35:58,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 13:35:58,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 13:35:58,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 13:35:58,601 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 13:35:58,630 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 13:35:58,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 13:35:58,631 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 13:35:58,631 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 13:35:58,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 13:35:58,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 13:35:58,633 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 13:35:58,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 13:35:58,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 13:35:58,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 13:35:58,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 13:35:58,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 13:35:58,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 13:35:58,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 13:35:58,635 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 13:35:58,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 13:35:58,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 13:35:58,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 13:35:58,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 13:35:58,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:35:58,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 13:35:58,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 13:35:58,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 13:35:58,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 13:35:58,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 13:35:58,637 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 13:35:58,637 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 13:35:58,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 13:35:58,638 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 13:35:58,638 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaa391796caf9ffd02d820d63142c08953b50843acf6dbe45cefeca4ae26da3b [2021-11-07 13:35:58,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 13:35:58,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 13:35:58,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 13:35:58,901 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 13:35:58,902 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 13:35:58,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i [2021-11-07 13:35:58,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adec17394/fd82c1f70ac744ac9763f2b85ab78129/FLAGea7f0441e [2021-11-07 13:35:59,578 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 13:35:59,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i [2021-11-07 13:35:59,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adec17394/fd82c1f70ac744ac9763f2b85ab78129/FLAGea7f0441e [2021-11-07 13:35:59,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adec17394/fd82c1f70ac744ac9763f2b85ab78129 [2021-11-07 13:35:59,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 13:35:59,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 13:35:59,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 13:35:59,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 13:35:59,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 13:35:59,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:35:59" (1/1) ... [2021-11-07 13:35:59,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651d0967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:59, skipping insertion in model container [2021-11-07 13:35:59,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:35:59" (1/1) ... [2021-11-07 13:35:59,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 13:35:59,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 13:36:00,311 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5977] [2021-11-07 13:36:00,327 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5978-5979] [2021-11-07 13:36:00,599 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i[185445,185458] [2021-11-07 13:36:01,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:36:01,350 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 13:36:01,443 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5977] [2021-11-07 13:36:01,444 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5978-5979] [2021-11-07 13:36:01,453 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i[185445,185458] [2021-11-07 13:36:01,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:36:01,823 INFO L208 MainTranslator]: Completed translation [2021-11-07 13:36:01,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:01 WrapperNode [2021-11-07 13:36:01,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 13:36:01,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 13:36:01,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 13:36:01,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 13:36:01,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:01" (1/1) ... [2021-11-07 13:36:01,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:01" (1/1) ... [2021-11-07 13:36:02,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 13:36:02,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 13:36:02,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 13:36:02,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 13:36:02,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:01" (1/1) ... [2021-11-07 13:36:02,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:01" (1/1) ... [2021-11-07 13:36:02,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:01" (1/1) ... [2021-11-07 13:36:02,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:01" (1/1) ... [2021-11-07 13:36:02,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:01" (1/1) ... [2021-11-07 13:36:02,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:01" (1/1) ... [2021-11-07 13:36:02,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:01" (1/1) ... [2021-11-07 13:36:02,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 13:36:02,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 13:36:02,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 13:36:02,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 13:36:02,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:01" (1/1) ... [2021-11-07 13:36:02,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:36:02,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:36:02,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 13:36:02,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 13:36:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-07 13:36:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-07 13:36:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-07 13:36:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 13:36:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 13:36:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure hso_kick_transmit [2021-11-07 13:36:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_kick_transmit [2021-11-07 13:36:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 13:36:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 13:36:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 13:36:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-07 13:36:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 13:36:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 13:36:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 13:36:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure hso_resume [2021-11-07 13:36:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_resume [2021-11-07 13:36:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 13:36:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 13:36:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 13:36:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-07 13:36:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-07 13:36:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 13:36:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure hso_free_interface [2021-11-07 13:36:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_free_interface [2021-11-07 13:36:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 13:36:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 13:36:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure hso_disconnect [2021-11-07 13:36:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_disconnect [2021-11-07 13:36:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 13:36:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 13:36:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 13:36:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 13:36:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 13:36:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 13:36:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 13:36:26,253 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 13:36:26,254 INFO L299 CfgBuilder]: Removed 3032 assume(true) statements. [2021-11-07 13:36:26,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:36:26 BoogieIcfgContainer [2021-11-07 13:36:26,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 13:36:26,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 13:36:26,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 13:36:26,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 13:36:26,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:35:59" (1/3) ... [2021-11-07 13:36:26,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205fc48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:36:26, skipping insertion in model container [2021-11-07 13:36:26,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:01" (2/3) ... [2021-11-07 13:36:26,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205fc48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:36:26, skipping insertion in model container [2021-11-07 13:36:26,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:36:26" (3/3) ... [2021-11-07 13:36:26,266 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i [2021-11-07 13:36:26,269 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 13:36:26,269 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2021-11-07 13:36:26,307 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 13:36:26,312 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 13:36:26,312 INFO L340 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2021-11-07 13:36:26,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 3210 states, 3127 states have (on average 1.4505916213623282) internal successors, (4536), 3185 states have internal predecessors, (4536), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-07 13:36:26,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 13:36:26,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:36:26,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:36:26,362 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:36:26,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:36:26,366 INFO L85 PathProgramCache]: Analyzing trace with hash 746580595, now seen corresponding path program 1 times [2021-11-07 13:36:26,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:36:26,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902506188] [2021-11-07 13:36:26,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:26,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:36:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:26,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:36:26,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:36:26,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902506188] [2021-11-07 13:36:26,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902506188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:36:26,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:36:26,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:36:26,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489810529] [2021-11-07 13:36:26,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:36:26,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:36:26,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:36:27,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:36:27,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:36:27,027 INFO L87 Difference]: Start difference. First operand has 3210 states, 3127 states have (on average 1.4505916213623282) internal successors, (4536), 3185 states have internal predecessors, (4536), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:27,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:36:27,324 INFO L93 Difference]: Finished difference Result 8585 states and 12315 transitions. [2021-11-07 13:36:27,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:36:27,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 13:36:27,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:36:27,355 INFO L225 Difference]: With dead ends: 8585 [2021-11-07 13:36:27,355 INFO L226 Difference]: Without dead ends: 5348 [2021-11-07 13:36:27,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.12ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:36:27,372 INFO L933 BasicCegarLoop]: 4446 mSDtfsCounter, 3202 mSDsluCounter, 4302 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 101.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3202 SdHoareTripleChecker+Valid, 8748 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.23ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119.77ms IncrementalHoareTripleChecker+Time [2021-11-07 13:36:27,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3202 Valid, 8748 Invalid, 25 Unknown, 0 Unchecked, 17.23ms Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 119.77ms Time] [2021-11-07 13:36:27,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5348 states. [2021-11-07 13:36:27,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5348 to 5299. [2021-11-07 13:36:27,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5196 states have (on average 1.4234026173979986) internal successors, (7396), 5255 states have internal predecessors, (7396), 31 states have call successors, (31), 16 states have call predecessors, (31), 16 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-07 13:36:27,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 7458 transitions. [2021-11-07 13:36:27,516 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 7458 transitions. Word has length 39 [2021-11-07 13:36:27,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:36:27,517 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 7458 transitions. [2021-11-07 13:36:27,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:27,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 7458 transitions. [2021-11-07 13:36:27,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 13:36:27,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:36:27,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:36:27,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 13:36:27,523 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:36:27,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:36:27,525 INFO L85 PathProgramCache]: Analyzing trace with hash 695045669, now seen corresponding path program 1 times [2021-11-07 13:36:27,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:36:27,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578601493] [2021-11-07 13:36:27,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:27,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:36:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:27,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:36:27,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:36:27,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578601493] [2021-11-07 13:36:27,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578601493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:36:27,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:36:27,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:36:27,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769617003] [2021-11-07 13:36:27,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:36:27,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:36:27,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:36:27,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:36:27,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:36:27,966 INFO L87 Difference]: Start difference. First operand 5299 states and 7458 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:28,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:36:28,349 INFO L93 Difference]: Finished difference Result 15243 states and 21563 transitions. [2021-11-07 13:36:28,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:36:28,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-07 13:36:28,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:36:28,400 INFO L225 Difference]: With dead ends: 15243 [2021-11-07 13:36:28,400 INFO L226 Difference]: Without dead ends: 10041 [2021-11-07 13:36:28,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.80ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:36:28,420 INFO L933 BasicCegarLoop]: 4436 mSDtfsCounter, 3966 mSDsluCounter, 4258 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 132.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3966 SdHoareTripleChecker+Valid, 8694 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.76ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 158.41ms IncrementalHoareTripleChecker+Time [2021-11-07 13:36:28,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3966 Valid, 8694 Invalid, 42 Unknown, 0 Unchecked, 15.76ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 158.41ms Time] [2021-11-07 13:36:28,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10041 states. [2021-11-07 13:36:28,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10041 to 9943. [2021-11-07 13:36:28,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9943 states, 9793 states have (on average 1.431328499948943) internal successors, (14017), 9856 states have internal predecessors, (14017), 62 states have call successors, (62), 32 states have call predecessors, (62), 32 states have return successors, (79), 58 states have call predecessors, (79), 62 states have call successors, (79) [2021-11-07 13:36:28,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9943 states to 9943 states and 14158 transitions. [2021-11-07 13:36:28,714 INFO L78 Accepts]: Start accepts. Automaton has 9943 states and 14158 transitions. Word has length 48 [2021-11-07 13:36:28,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:36:28,715 INFO L470 AbstractCegarLoop]: Abstraction has 9943 states and 14158 transitions. [2021-11-07 13:36:28,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:28,715 INFO L276 IsEmpty]: Start isEmpty. Operand 9943 states and 14158 transitions. [2021-11-07 13:36:28,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 13:36:28,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:36:28,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:36:28,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 13:36:28,720 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:36:28,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:36:28,721 INFO L85 PathProgramCache]: Analyzing trace with hash 895807168, now seen corresponding path program 1 times [2021-11-07 13:36:28,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:36:28,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000668502] [2021-11-07 13:36:28,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:28,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:36:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:28,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:36:28,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:36:28,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000668502] [2021-11-07 13:36:28,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000668502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:36:28,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:36:28,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:36:28,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712931507] [2021-11-07 13:36:28,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:36:28,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:36:28,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:36:28,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:36:28,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:36:28,967 INFO L87 Difference]: Start difference. First operand 9943 states and 14158 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:29,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:36:29,339 INFO L93 Difference]: Finished difference Result 24555 states and 34858 transitions. [2021-11-07 13:36:29,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:36:29,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-07 13:36:29,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:36:29,407 INFO L225 Difference]: With dead ends: 24555 [2021-11-07 13:36:29,408 INFO L226 Difference]: Without dead ends: 14709 [2021-11-07 13:36:29,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:36:29,431 INFO L933 BasicCegarLoop]: 5973 mSDtfsCounter, 3451 mSDsluCounter, 4238 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 127.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3451 SdHoareTripleChecker+Valid, 10211 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.48ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 155.77ms IncrementalHoareTripleChecker+Time [2021-11-07 13:36:29,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3451 Valid, 10211 Invalid, 62 Unknown, 0 Unchecked, 11.48ms Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 155.77ms Time] [2021-11-07 13:36:29,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14709 states. [2021-11-07 13:36:29,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14709 to 14603. [2021-11-07 13:36:29,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14603 states, 14407 states have (on average 1.4259040744082738) internal successors, (20543), 14474 states have internal predecessors, (20543), 92 states have call successors, (92), 48 states have call predecessors, (92), 48 states have return successors, (117), 86 states have call predecessors, (117), 92 states have call successors, (117) [2021-11-07 13:36:29,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14603 states to 14603 states and 20752 transitions. [2021-11-07 13:36:29,788 INFO L78 Accepts]: Start accepts. Automaton has 14603 states and 20752 transitions. Word has length 68 [2021-11-07 13:36:29,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:36:29,788 INFO L470 AbstractCegarLoop]: Abstraction has 14603 states and 20752 transitions. [2021-11-07 13:36:29,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:29,789 INFO L276 IsEmpty]: Start isEmpty. Operand 14603 states and 20752 transitions. [2021-11-07 13:36:29,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 13:36:29,790 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:36:29,790 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:36:29,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 13:36:29,790 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:36:29,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:36:29,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1188807584, now seen corresponding path program 1 times [2021-11-07 13:36:29,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:36:29,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223895390] [2021-11-07 13:36:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:29,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:36:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:30,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:36:30,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:36:30,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223895390] [2021-11-07 13:36:30,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223895390] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:36:30,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:36:30,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:36:30,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893035756] [2021-11-07 13:36:30,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:36:30,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:36:30,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:36:30,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:36:30,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:36:30,048 INFO L87 Difference]: Start difference. First operand 14603 states and 20752 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:30,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:36:30,218 INFO L93 Difference]: Finished difference Result 29125 states and 41419 transitions. [2021-11-07 13:36:30,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:36:30,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-07 13:36:30,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:36:30,247 INFO L225 Difference]: With dead ends: 29125 [2021-11-07 13:36:30,248 INFO L226 Difference]: Without dead ends: 14619 [2021-11-07 13:36:30,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:36:30,273 INFO L933 BasicCegarLoop]: 4405 mSDtfsCounter, 1 mSDsluCounter, 4402 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8807 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.28ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.12ms IncrementalHoareTripleChecker+Time [2021-11-07 13:36:30,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 8807 Invalid, 6 Unknown, 0 Unchecked, 6.28ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 6.12ms Time] [2021-11-07 13:36:30,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14619 states. [2021-11-07 13:36:30,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14619 to 14611. [2021-11-07 13:36:30,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14611 states, 14415 states have (on average 1.425667707249393) internal successors, (20551), 14482 states have internal predecessors, (20551), 92 states have call successors, (92), 48 states have call predecessors, (92), 48 states have return successors, (117), 86 states have call predecessors, (117), 92 states have call successors, (117) [2021-11-07 13:36:30,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14611 states to 14611 states and 20760 transitions. [2021-11-07 13:36:30,493 INFO L78 Accepts]: Start accepts. Automaton has 14611 states and 20760 transitions. Word has length 74 [2021-11-07 13:36:30,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:36:30,493 INFO L470 AbstractCegarLoop]: Abstraction has 14611 states and 20760 transitions. [2021-11-07 13:36:30,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:30,494 INFO L276 IsEmpty]: Start isEmpty. Operand 14611 states and 20760 transitions. [2021-11-07 13:36:30,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 13:36:30,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:36:30,495 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:36:30,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 13:36:30,496 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:36:30,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:36:30,496 INFO L85 PathProgramCache]: Analyzing trace with hash 99029244, now seen corresponding path program 1 times [2021-11-07 13:36:30,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:36:30,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985793922] [2021-11-07 13:36:30,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:30,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:36:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:30,693 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:36:30,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:36:30,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985793922] [2021-11-07 13:36:30,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985793922] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 13:36:30,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517289776] [2021-11-07 13:36:30,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:30,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:30,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:36:30,699 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 13:36:30,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 13:36:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:32,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 4618 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 13:36:32,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 13:36:32,426 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 13:36:32,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 13:36:32,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517289776] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:36:32,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 13:36:32,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-07 13:36:32,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88325898] [2021-11-07 13:36:32,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:36:32,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:36:32,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:36:32,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:36:32,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:32,429 INFO L87 Difference]: Start difference. First operand 14611 states and 20760 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:32,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:36:32,602 INFO L93 Difference]: Finished difference Result 29125 states and 41411 transitions. [2021-11-07 13:36:32,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:36:32,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-07 13:36:32,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:36:32,631 INFO L225 Difference]: With dead ends: 29125 [2021-11-07 13:36:32,631 INFO L226 Difference]: Without dead ends: 14611 [2021-11-07 13:36:32,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.48ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:32,659 INFO L933 BasicCegarLoop]: 4405 mSDtfsCounter, 4357 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4357 SdHoareTripleChecker+Valid, 4405 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.35ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.02ms IncrementalHoareTripleChecker+Time [2021-11-07 13:36:32,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4357 Valid, 4405 Invalid, 1 Unknown, 0 Unchecked, 5.35ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.02ms Time] [2021-11-07 13:36:32,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14611 states. [2021-11-07 13:36:32,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14611 to 14611. [2021-11-07 13:36:32,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14611 states, 14415 states have (on average 1.425112729795352) internal successors, (20543), 14482 states have internal predecessors, (20543), 92 states have call successors, (92), 48 states have call predecessors, (92), 48 states have return successors, (117), 86 states have call predecessors, (117), 92 states have call successors, (117) [2021-11-07 13:36:32,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14611 states to 14611 states and 20752 transitions. [2021-11-07 13:36:32,884 INFO L78 Accepts]: Start accepts. Automaton has 14611 states and 20752 transitions. Word has length 76 [2021-11-07 13:36:32,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:36:32,884 INFO L470 AbstractCegarLoop]: Abstraction has 14611 states and 20752 transitions. [2021-11-07 13:36:32,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:32,884 INFO L276 IsEmpty]: Start isEmpty. Operand 14611 states and 20752 transitions. [2021-11-07 13:36:32,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 13:36:32,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:36:32,886 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:36:32,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 13:36:33,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:33,108 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:36:33,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:36:33,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2022257278, now seen corresponding path program 1 times [2021-11-07 13:36:33,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:36:33,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821748221] [2021-11-07 13:36:33,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:33,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:36:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:36:33,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:36:33,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821748221] [2021-11-07 13:36:33,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821748221] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 13:36:33,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584496802] [2021-11-07 13:36:33,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:33,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:33,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:36:33,319 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 13:36:33,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 13:36:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:34,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 4616 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 13:36:34,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 13:36:34,802 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 13:36:34,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 13:36:34,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584496802] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:36:34,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 13:36:34,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-07 13:36:34,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703177755] [2021-11-07 13:36:34,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:36:34,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:36:34,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:36:34,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:36:34,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:34,804 INFO L87 Difference]: Start difference. First operand 14611 states and 20752 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:36,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:36:37,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:36:37,279 INFO L93 Difference]: Finished difference Result 29129 states and 41399 transitions. [2021-11-07 13:36:37,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:36:37,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-07 13:36:37,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:36:37,321 INFO L225 Difference]: With dead ends: 29129 [2021-11-07 13:36:37,322 INFO L226 Difference]: Without dead ends: 14607 [2021-11-07 13:36:37,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 9.46ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:37,350 INFO L933 BasicCegarLoop]: 4406 mSDtfsCounter, 0 mSDsluCounter, 4401 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2077.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8807 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2203.33ms IncrementalHoareTripleChecker+Time [2021-11-07 13:36:37,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8807 Invalid, 4 Unknown, 0 Unchecked, 13.45ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2203.33ms Time] [2021-11-07 13:36:37,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14607 states. [2021-11-07 13:36:37,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14607 to 14461. [2021-11-07 13:36:37,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14461 states, 14265 states have (on average 1.4273396424815983) internal successors, (20361), 14332 states have internal predecessors, (20361), 92 states have call successors, (92), 48 states have call predecessors, (92), 48 states have return successors, (117), 86 states have call predecessors, (117), 92 states have call successors, (117) [2021-11-07 13:36:37,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14461 states to 14461 states and 20570 transitions. [2021-11-07 13:36:37,638 INFO L78 Accepts]: Start accepts. Automaton has 14461 states and 20570 transitions. Word has length 76 [2021-11-07 13:36:37,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:36:37,638 INFO L470 AbstractCegarLoop]: Abstraction has 14461 states and 20570 transitions. [2021-11-07 13:36:37,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:37,639 INFO L276 IsEmpty]: Start isEmpty. Operand 14461 states and 20570 transitions. [2021-11-07 13:36:37,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 13:36:37,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:36:37,642 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:36:37,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-07 13:36:37,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-07 13:36:37,856 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:36:37,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:36:37,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1537082192, now seen corresponding path program 1 times [2021-11-07 13:36:37,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:36:37,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151672166] [2021-11-07 13:36:37,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:37,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:36:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:38,233 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:36:38,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:36:38,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151672166] [2021-11-07 13:36:38,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151672166] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 13:36:38,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939390215] [2021-11-07 13:36:38,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:38,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:38,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:36:38,256 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 13:36:38,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 13:36:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:39,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 4665 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 13:36:39,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 13:36:39,868 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 13:36:39,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 13:36:39,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939390215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:36:39,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 13:36:39,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-07 13:36:39,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694473933] [2021-11-07 13:36:39,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:36:39,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:36:39,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:36:39,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:36:39,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:39,869 INFO L87 Difference]: Start difference. First operand 14461 states and 20570 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:40,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:36:40,355 INFO L93 Difference]: Finished difference Result 15297 states and 21689 transitions. [2021-11-07 13:36:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:36:40,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 13:36:40,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:36:40,397 INFO L225 Difference]: With dead ends: 15297 [2021-11-07 13:36:40,398 INFO L226 Difference]: Without dead ends: 15205 [2021-11-07 13:36:40,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 9.59ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:40,407 INFO L933 BasicCegarLoop]: 4290 mSDtfsCounter, 3159 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 243.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3159 SdHoareTripleChecker+Valid, 5447 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.41ms SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 294.04ms IncrementalHoareTripleChecker+Time [2021-11-07 13:36:40,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3159 Valid, 5447 Invalid, 201 Unknown, 0 Unchecked, 9.41ms Time], IncrementalHoareTripleChecker [86 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 294.04ms Time] [2021-11-07 13:36:40,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15205 states. [2021-11-07 13:36:40,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15205 to 15073. [2021-11-07 13:36:40,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15073 states, 14914 states have (on average 1.4146439586965267) internal successors, (21098), 14940 states have internal predecessors, (21098), 92 states have call successors, (92), 52 states have call predecessors, (92), 52 states have return successors, (121), 86 states have call predecessors, (121), 92 states have call successors, (121) [2021-11-07 13:36:40,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15073 states to 15073 states and 21311 transitions. [2021-11-07 13:36:40,716 INFO L78 Accepts]: Start accepts. Automaton has 15073 states and 21311 transitions. Word has length 81 [2021-11-07 13:36:40,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:36:40,717 INFO L470 AbstractCegarLoop]: Abstraction has 15073 states and 21311 transitions. [2021-11-07 13:36:40,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:40,718 INFO L276 IsEmpty]: Start isEmpty. Operand 15073 states and 21311 transitions. [2021-11-07 13:36:40,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-07 13:36:40,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:36:40,722 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:36:40,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 13:36:40,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:40,947 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:36:40,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:36:40,948 INFO L85 PathProgramCache]: Analyzing trace with hash 85733240, now seen corresponding path program 1 times [2021-11-07 13:36:40,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:36:40,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464362098] [2021-11-07 13:36:40,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:40,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:36:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:36:41,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:36:41,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464362098] [2021-11-07 13:36:41,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464362098] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 13:36:41,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018127476] [2021-11-07 13:36:41,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:41,202 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:41,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:36:41,203 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 13:36:41,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 13:36:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:42,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 4688 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 13:36:42,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 13:36:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 13:36:42,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 13:36:42,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018127476] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:36:42,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 13:36:42,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-07 13:36:42,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039790292] [2021-11-07 13:36:42,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:36:42,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:36:42,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:36:42,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:36:42,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:42,825 INFO L87 Difference]: Start difference. First operand 15073 states and 21311 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:43,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:36:43,311 INFO L93 Difference]: Finished difference Result 37837 states and 53535 transitions. [2021-11-07 13:36:43,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:36:43,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-11-07 13:36:43,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:36:43,358 INFO L225 Difference]: With dead ends: 37837 [2021-11-07 13:36:43,359 INFO L226 Difference]: Without dead ends: 22861 [2021-11-07 13:36:43,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 10.33ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:43,383 INFO L933 BasicCegarLoop]: 4308 mSDtfsCounter, 3926 mSDsluCounter, 3645 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3926 SdHoareTripleChecker+Valid, 7953 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.32ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 201.01ms IncrementalHoareTripleChecker+Time [2021-11-07 13:36:43,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3926 Valid, 7953 Invalid, 100 Unknown, 0 Unchecked, 8.32ms Time], IncrementalHoareTripleChecker [30 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 201.01ms Time] [2021-11-07 13:36:43,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22861 states. [2021-11-07 13:36:43,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22861 to 22685. [2021-11-07 13:36:43,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22685 states, 22442 states have (on average 1.4160948222083594) internal successors, (31780), 22476 states have internal predecessors, (31780), 142 states have call successors, (142), 86 states have call predecessors, (142), 86 states have return successors, (186), 132 states have call predecessors, (186), 142 states have call successors, (186) [2021-11-07 13:36:43,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22685 states to 22685 states and 32108 transitions. [2021-11-07 13:36:43,928 INFO L78 Accepts]: Start accepts. Automaton has 22685 states and 32108 transitions. Word has length 98 [2021-11-07 13:36:43,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:36:43,928 INFO L470 AbstractCegarLoop]: Abstraction has 22685 states and 32108 transitions. [2021-11-07 13:36:43,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:43,928 INFO L276 IsEmpty]: Start isEmpty. Operand 22685 states and 32108 transitions. [2021-11-07 13:36:43,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-07 13:36:43,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:36:43,935 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:36:43,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 13:36:44,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:44,163 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:36:44,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:36:44,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1449503104, now seen corresponding path program 1 times [2021-11-07 13:36:44,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:36:44,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510860330] [2021-11-07 13:36:44,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:44,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:36:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:44,374 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:36:44,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:36:44,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510860330] [2021-11-07 13:36:44,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510860330] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 13:36:44,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025522318] [2021-11-07 13:36:44,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:44,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:44,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:36:44,376 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 13:36:44,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 13:36:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:45,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 4971 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 13:36:45,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 13:36:45,935 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 13:36:45,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 13:36:45,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025522318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:36:45,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 13:36:45,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-07 13:36:45,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690170881] [2021-11-07 13:36:45,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:36:45,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:36:45,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:36:45,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:36:45,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:45,937 INFO L87 Difference]: Start difference. First operand 22685 states and 32108 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:46,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:36:46,744 INFO L93 Difference]: Finished difference Result 55735 states and 79175 transitions. [2021-11-07 13:36:46,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:36:46,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-07 13:36:46,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:36:46,824 INFO L225 Difference]: With dead ends: 55735 [2021-11-07 13:36:46,824 INFO L226 Difference]: Without dead ends: 33147 [2021-11-07 13:36:46,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.01ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:46,865 INFO L933 BasicCegarLoop]: 4863 mSDtfsCounter, 4205 mSDsluCounter, 3149 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4205 SdHoareTripleChecker+Valid, 8012 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.03ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 122.02ms IncrementalHoareTripleChecker+Time [2021-11-07 13:36:46,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4205 Valid, 8012 Invalid, 35 Unknown, 0 Unchecked, 7.03ms Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 122.02ms Time] [2021-11-07 13:36:46,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33147 states. [2021-11-07 13:36:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33147 to 33097. [2021-11-07 13:36:47,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33097 states, 32740 states have (on average 1.4243738546120952) internal successors, (46634), 32786 states have internal predecessors, (46634), 208 states have call successors, (208), 134 states have call predecessors, (208), 134 states have return successors, (269), 192 states have call predecessors, (269), 208 states have call successors, (269) [2021-11-07 13:36:47,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33097 states to 33097 states and 47111 transitions. [2021-11-07 13:36:47,607 INFO L78 Accepts]: Start accepts. Automaton has 33097 states and 47111 transitions. Word has length 114 [2021-11-07 13:36:47,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:36:47,608 INFO L470 AbstractCegarLoop]: Abstraction has 33097 states and 47111 transitions. [2021-11-07 13:36:47,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:47,608 INFO L276 IsEmpty]: Start isEmpty. Operand 33097 states and 47111 transitions. [2021-11-07 13:36:47,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-07 13:36:47,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:36:47,620 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:36:47,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-07 13:36:47,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:47,836 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:36:47,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:36:47,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1395952561, now seen corresponding path program 1 times [2021-11-07 13:36:47,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:36:47,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203490485] [2021-11-07 13:36:47,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:47,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:36:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:48,033 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 13:36:48,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:36:48,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203490485] [2021-11-07 13:36:48,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203490485] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 13:36:48,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091332258] [2021-11-07 13:36:48,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:48,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:48,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:36:48,048 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 13:36:48,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 13:36:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:49,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 5042 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 13:36:49,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 13:36:49,764 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 13:36:49,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 13:36:49,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091332258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:36:49,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 13:36:49,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-07 13:36:49,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568139074] [2021-11-07 13:36:49,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:36:49,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:36:49,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:36:49,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:36:49,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:49,766 INFO L87 Difference]: Start difference. First operand 33097 states and 47111 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:50,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:36:50,481 INFO L93 Difference]: Finished difference Result 76559 states and 109181 transitions. [2021-11-07 13:36:50,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:36:50,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2021-11-07 13:36:50,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:36:50,732 INFO L225 Difference]: With dead ends: 76559 [2021-11-07 13:36:50,733 INFO L226 Difference]: Without dead ends: 43559 [2021-11-07 13:36:50,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.88ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:50,766 INFO L933 BasicCegarLoop]: 4494 mSDtfsCounter, 4293 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 117.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4293 SdHoareTripleChecker+Valid, 7570 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.95ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 140.01ms IncrementalHoareTripleChecker+Time [2021-11-07 13:36:50,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4293 Valid, 7570 Invalid, 36 Unknown, 0 Unchecked, 7.95ms Time], IncrementalHoareTripleChecker [14 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 140.01ms Time] [2021-11-07 13:36:50,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43559 states. [2021-11-07 13:36:51,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43559 to 43509. [2021-11-07 13:36:51,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43509 states, 43038 states have (on average 1.4289697476648544) internal successors, (61500), 43096 states have internal predecessors, (61500), 274 states have call successors, (274), 182 states have call predecessors, (274), 182 states have return successors, (352), 252 states have call predecessors, (352), 274 states have call successors, (352) [2021-11-07 13:36:51,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43509 states to 43509 states and 62126 transitions. [2021-11-07 13:36:51,557 INFO L78 Accepts]: Start accepts. Automaton has 43509 states and 62126 transitions. Word has length 124 [2021-11-07 13:36:51,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:36:51,558 INFO L470 AbstractCegarLoop]: Abstraction has 43509 states and 62126 transitions. [2021-11-07 13:36:51,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:51,558 INFO L276 IsEmpty]: Start isEmpty. Operand 43509 states and 62126 transitions. [2021-11-07 13:36:51,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-07 13:36:51,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:36:51,572 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:36:51,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 13:36:51,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:51,788 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:36:51,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:36:51,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1683825483, now seen corresponding path program 1 times [2021-11-07 13:36:51,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:36:51,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090844985] [2021-11-07 13:36:51,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:51,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:36:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:52,009 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 13:36:52,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:36:52,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090844985] [2021-11-07 13:36:52,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090844985] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 13:36:52,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298087559] [2021-11-07 13:36:52,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:52,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:52,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:36:52,016 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 13:36:52,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 13:36:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:53,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 4888 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 13:36:53,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 13:36:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 13:36:53,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 13:36:53,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298087559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:36:53,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 13:36:53,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-07 13:36:53,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756993434] [2021-11-07 13:36:53,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:36:53,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:36:53,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:36:53,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:36:53,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:53,962 INFO L87 Difference]: Start difference. First operand 43509 states and 62126 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:54,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:36:54,854 INFO L93 Difference]: Finished difference Result 86929 states and 124159 transitions. [2021-11-07 13:36:54,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:36:54,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-07 13:36:54,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:36:54,969 INFO L225 Difference]: With dead ends: 86929 [2021-11-07 13:36:54,969 INFO L226 Difference]: Without dead ends: 43517 [2021-11-07 13:36:55,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.19ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:36:55,048 INFO L933 BasicCegarLoop]: 4322 mSDtfsCounter, 0 mSDsluCounter, 4317 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8639 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.58ms IncrementalHoareTripleChecker+Time [2021-11-07 13:36:55,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8639 Invalid, 6 Unknown, 0 Unchecked, 10.92ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 8.58ms Time] [2021-11-07 13:36:55,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43517 states. [2021-11-07 13:36:55,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43517 to 43517. [2021-11-07 13:36:56,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43517 states, 43046 states have (on average 1.42889002462482) internal successors, (61508), 43104 states have internal predecessors, (61508), 274 states have call successors, (274), 182 states have call predecessors, (274), 182 states have return successors, (352), 252 states have call predecessors, (352), 274 states have call successors, (352) [2021-11-07 13:36:56,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43517 states to 43517 states and 62134 transitions. [2021-11-07 13:36:56,128 INFO L78 Accepts]: Start accepts. Automaton has 43517 states and 62134 transitions. Word has length 128 [2021-11-07 13:36:56,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:36:56,129 INFO L470 AbstractCegarLoop]: Abstraction has 43517 states and 62134 transitions. [2021-11-07 13:36:56,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:56,129 INFO L276 IsEmpty]: Start isEmpty. Operand 43517 states and 62134 transitions. [2021-11-07 13:36:56,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-07 13:36:56,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:36:56,140 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:36:56,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 13:36:56,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:56,367 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:36:56,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:36:56,367 INFO L85 PathProgramCache]: Analyzing trace with hash 2130061555, now seen corresponding path program 1 times [2021-11-07 13:36:56,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:36:56,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645425861] [2021-11-07 13:36:56,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:56,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:36:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:56,583 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 13:36:56,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:36:56,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645425861] [2021-11-07 13:36:56,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645425861] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 13:36:56,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361777481] [2021-11-07 13:36:56,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:36:56,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:36:56,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:36:56,585 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 13:36:56,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 13:36:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:36:58,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 4891 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 13:36:58,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 13:36:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 13:36:58,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 13:36:58,663 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 13:36:58,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361777481] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 13:36:58,663 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 13:36:58,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-07 13:36:58,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887281628] [2021-11-07 13:36:58,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 13:36:58,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 13:36:58,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:36:58,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 13:36:58,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 13:36:58,666 INFO L87 Difference]: Start difference. First operand 43517 states and 62134 transitions. Second operand has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:36:59,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:36:59,546 INFO L93 Difference]: Finished difference Result 86985 states and 124231 transitions. [2021-11-07 13:36:59,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 13:36:59,547 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-07 13:36:59,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:36:59,652 INFO L225 Difference]: With dead ends: 86985 [2021-11-07 13:36:59,652 INFO L226 Difference]: Without dead ends: 43565 [2021-11-07 13:36:59,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 14.95ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 13:36:59,701 INFO L933 BasicCegarLoop]: 4321 mSDtfsCounter, 6 mSDsluCounter, 8636 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 12957 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.00ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.34ms IncrementalHoareTripleChecker+Time [2021-11-07 13:36:59,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 12957 Invalid, 18 Unknown, 0 Unchecked, 12.00ms Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 28.34ms Time] [2021-11-07 13:36:59,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43565 states. [2021-11-07 13:37:00,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43565 to 43565. [2021-11-07 13:37:00,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43565 states, 43094 states have (on average 1.4284123079779087) internal successors, (61556), 43152 states have internal predecessors, (61556), 274 states have call successors, (274), 182 states have call predecessors, (274), 182 states have return successors, (352), 252 states have call predecessors, (352), 274 states have call successors, (352) [2021-11-07 13:37:00,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43565 states to 43565 states and 62182 transitions. [2021-11-07 13:37:00,895 INFO L78 Accepts]: Start accepts. Automaton has 43565 states and 62182 transitions. Word has length 128 [2021-11-07 13:37:00,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:37:00,895 INFO L470 AbstractCegarLoop]: Abstraction has 43565 states and 62182 transitions. [2021-11-07 13:37:00,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:00,895 INFO L276 IsEmpty]: Start isEmpty. Operand 43565 states and 62182 transitions. [2021-11-07 13:37:00,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-07 13:37:00,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:37:00,906 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:37:00,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-07 13:37:01,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-07 13:37:01,127 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:37:01,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:37:01,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2065791737, now seen corresponding path program 2 times [2021-11-07 13:37:01,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:37:01,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028031982] [2021-11-07 13:37:01,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:01,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:37:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:01,332 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 13:37:01,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:37:01,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028031982] [2021-11-07 13:37:01,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028031982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:37:01,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:37:01,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 13:37:01,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183363341] [2021-11-07 13:37:01,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:37:01,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 13:37:01,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:37:01,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 13:37:01,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 13:37:01,334 INFO L87 Difference]: Start difference. First operand 43565 states and 62182 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:03,442 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:37:04,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:37:04,469 INFO L93 Difference]: Finished difference Result 87049 states and 124271 transitions. [2021-11-07 13:37:04,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 13:37:04,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-07 13:37:04,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:37:04,563 INFO L225 Difference]: With dead ends: 87049 [2021-11-07 13:37:04,564 INFO L226 Difference]: Without dead ends: 43565 [2021-11-07 13:37:04,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.08ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:37:04,615 INFO L933 BasicCegarLoop]: 4322 mSDtfsCounter, 1 mSDsluCounter, 8637 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2113.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 12959 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2235.74ms IncrementalHoareTripleChecker+Time [2021-11-07 13:37:04,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 12959 Invalid, 9 Unknown, 0 Unchecked, 7.77ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 2235.74ms Time] [2021-11-07 13:37:04,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43565 states. [2021-11-07 13:37:05,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43565 to 43565. [2021-11-07 13:37:05,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43565 states, 43094 states have (on average 1.4282266672854689) internal successors, (61548), 43152 states have internal predecessors, (61548), 274 states have call successors, (274), 182 states have call predecessors, (274), 182 states have return successors, (352), 252 states have call predecessors, (352), 274 states have call successors, (352) [2021-11-07 13:37:05,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43565 states to 43565 states and 62174 transitions. [2021-11-07 13:37:05,623 INFO L78 Accepts]: Start accepts. Automaton has 43565 states and 62174 transitions. Word has length 134 [2021-11-07 13:37:05,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:37:05,623 INFO L470 AbstractCegarLoop]: Abstraction has 43565 states and 62174 transitions. [2021-11-07 13:37:05,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:05,641 INFO L276 IsEmpty]: Start isEmpty. Operand 43565 states and 62174 transitions. [2021-11-07 13:37:05,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-07 13:37:05,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:37:05,658 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:37:05,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 13:37:05,658 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ##fun~$Pointer$~TO~VOIDErr5ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:37:05,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:37:05,659 INFO L85 PathProgramCache]: Analyzing trace with hash 75452608, now seen corresponding path program 1 times [2021-11-07 13:37:05,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:37:05,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834562945] [2021-11-07 13:37:05,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:05,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:37:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-07 13:37:06,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:37:06,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834562945] [2021-11-07 13:37:06,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834562945] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:37:06,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:37:06,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 13:37:06,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143280520] [2021-11-07 13:37:06,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:37:06,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 13:37:06,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:37:06,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 13:37:06,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 13:37:06,310 INFO L87 Difference]: Start difference. First operand 43565 states and 62174 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:07,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:37:07,276 INFO L93 Difference]: Finished difference Result 92143 states and 131674 transitions. [2021-11-07 13:37:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 13:37:07,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2021-11-07 13:37:07,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:37:07,393 INFO L225 Difference]: With dead ends: 92143 [2021-11-07 13:37:07,393 INFO L226 Difference]: Without dead ends: 48675 [2021-11-07 13:37:07,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.76ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:37:07,450 INFO L933 BasicCegarLoop]: 4611 mSDtfsCounter, 333 mSDsluCounter, 8868 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 13479 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.31ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96.21ms IncrementalHoareTripleChecker+Time [2021-11-07 13:37:07,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 13479 Invalid, 87 Unknown, 0 Unchecked, 15.31ms Time], IncrementalHoareTripleChecker [12 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 96.21ms Time] [2021-11-07 13:37:07,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48675 states. [2021-11-07 13:37:08,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48675 to 45127. [2021-11-07 13:37:08,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45127 states, 44645 states have (on average 1.4281330496136186) internal successors, (63759), 44714 states have internal predecessors, (63759), 274 states have call successors, (274), 182 states have call predecessors, (274), 193 states have return successors, (363), 252 states have call predecessors, (363), 274 states have call successors, (363) [2021-11-07 13:37:08,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45127 states to 45127 states and 64396 transitions. [2021-11-07 13:37:08,678 INFO L78 Accepts]: Start accepts. Automaton has 45127 states and 64396 transitions. Word has length 142 [2021-11-07 13:37:08,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:37:08,678 INFO L470 AbstractCegarLoop]: Abstraction has 45127 states and 64396 transitions. [2021-11-07 13:37:08,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:08,678 INFO L276 IsEmpty]: Start isEmpty. Operand 45127 states and 64396 transitions. [2021-11-07 13:37:08,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-07 13:37:08,694 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:37:08,694 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:37:08,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 13:37:08,695 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:37:08,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:37:08,695 INFO L85 PathProgramCache]: Analyzing trace with hash 842891868, now seen corresponding path program 1 times [2021-11-07 13:37:08,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:37:08,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616429525] [2021-11-07 13:37:08,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:08,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:37:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:09,169 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 13:37:09,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:37:09,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616429525] [2021-11-07 13:37:09,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616429525] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 13:37:09,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089573275] [2021-11-07 13:37:09,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:09,170 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:37:09,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:37:09,171 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 13:37:09,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 13:37:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:10,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 5048 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 13:37:10,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 13:37:11,089 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 13:37:11,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 13:37:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 13:37:11,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089573275] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 13:37:11,379 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 13:37:11,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2021-11-07 13:37:11,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529268338] [2021-11-07 13:37:11,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 13:37:11,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 13:37:11,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:37:11,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 13:37:11,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-07 13:37:11,381 INFO L87 Difference]: Start difference. First operand 45127 states and 64396 transitions. Second operand has 13 states, 13 states have (on average 11.153846153846153) internal successors, (145), 13 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:12,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:37:12,410 INFO L93 Difference]: Finished difference Result 90253 states and 128827 transitions. [2021-11-07 13:37:12,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 13:37:12,411 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.153846153846153) internal successors, (145), 13 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2021-11-07 13:37:12,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:37:12,508 INFO L225 Difference]: With dead ends: 90253 [2021-11-07 13:37:12,508 INFO L226 Difference]: Without dead ends: 45223 [2021-11-07 13:37:12,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 54.32ms TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-07 13:37:12,560 INFO L933 BasicCegarLoop]: 4320 mSDtfsCounter, 10 mSDsluCounter, 12951 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 17271 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.78ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.68ms IncrementalHoareTripleChecker+Time [2021-11-07 13:37:12,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 17271 Invalid, 38 Unknown, 0 Unchecked, 24.78ms Time], IncrementalHoareTripleChecker [9 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 22.68ms Time] [2021-11-07 13:37:12,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45223 states. [2021-11-07 13:37:13,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45223 to 45223. [2021-11-07 13:37:13,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45223 states, 44741 states have (on average 1.4272144118370176) internal successors, (63855), 44810 states have internal predecessors, (63855), 274 states have call successors, (274), 182 states have call predecessors, (274), 193 states have return successors, (363), 252 states have call predecessors, (363), 274 states have call successors, (363) [2021-11-07 13:37:13,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45223 states to 45223 states and 64492 transitions. [2021-11-07 13:37:13,567 INFO L78 Accepts]: Start accepts. Automaton has 45223 states and 64492 transitions. Word has length 142 [2021-11-07 13:37:13,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:37:13,569 INFO L470 AbstractCegarLoop]: Abstraction has 45223 states and 64492 transitions. [2021-11-07 13:37:13,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.153846153846153) internal successors, (145), 13 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:13,571 INFO L276 IsEmpty]: Start isEmpty. Operand 45223 states and 64492 transitions. [2021-11-07 13:37:13,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-07 13:37:13,586 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:37:13,586 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:37:13,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-07 13:37:13,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-07 13:37:13,807 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:37:13,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:37:13,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1752255100, now seen corresponding path program 2 times [2021-11-07 13:37:13,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:37:13,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791593719] [2021-11-07 13:37:13,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:13,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:37:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:14,470 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 10 proven. 100 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 13:37:14,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:37:14,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791593719] [2021-11-07 13:37:14,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791593719] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 13:37:14,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463909840] [2021-11-07 13:37:14,471 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 13:37:14,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:37:14,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:37:14,473 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 13:37:14,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 13:37:15,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 13:37:15,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 13:37:15,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 4473 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 13:37:15,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 13:37:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-11-07 13:37:16,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 13:37:16,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463909840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:37:16,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 13:37:16,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2021-11-07 13:37:16,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12403068] [2021-11-07 13:37:16,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:37:16,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 13:37:16,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:37:16,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 13:37:16,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2021-11-07 13:37:16,039 INFO L87 Difference]: Start difference. First operand 45223 states and 64492 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:16,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:37:16,839 INFO L93 Difference]: Finished difference Result 90569 states and 129567 transitions. [2021-11-07 13:37:16,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 13:37:16,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2021-11-07 13:37:16,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:37:16,926 INFO L225 Difference]: With dead ends: 90569 [2021-11-07 13:37:16,926 INFO L226 Difference]: Without dead ends: 45443 [2021-11-07 13:37:16,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 90.92ms TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2021-11-07 13:37:16,982 INFO L933 BasicCegarLoop]: 4327 mSDtfsCounter, 12 mSDsluCounter, 8647 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12974 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.48ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.63ms IncrementalHoareTripleChecker+Time [2021-11-07 13:37:16,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 12974 Invalid, 9 Unknown, 0 Unchecked, 6.48ms Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 15.63ms Time] [2021-11-07 13:37:17,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45443 states. [2021-11-07 13:37:17,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45443 to 45267. [2021-11-07 13:37:17,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45267 states, 44785 states have (on average 1.4267946857206655) internal successors, (63899), 44854 states have internal predecessors, (63899), 274 states have call successors, (274), 182 states have call predecessors, (274), 193 states have return successors, (363), 252 states have call predecessors, (363), 274 states have call successors, (363) [2021-11-07 13:37:18,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45267 states to 45267 states and 64536 transitions. [2021-11-07 13:37:18,003 INFO L78 Accepts]: Start accepts. Automaton has 45267 states and 64536 transitions. Word has length 154 [2021-11-07 13:37:18,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:37:18,003 INFO L470 AbstractCegarLoop]: Abstraction has 45267 states and 64536 transitions. [2021-11-07 13:37:18,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:18,004 INFO L276 IsEmpty]: Start isEmpty. Operand 45267 states and 64536 transitions. [2021-11-07 13:37:18,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-07 13:37:18,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:37:18,016 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:37:18,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-07 13:37:18,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-07 13:37:18,239 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:37:18,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:37:18,240 INFO L85 PathProgramCache]: Analyzing trace with hash -803560463, now seen corresponding path program 1 times [2021-11-07 13:37:18,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:37:18,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884679057] [2021-11-07 13:37:18,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:18,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:37:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:18,649 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 10 proven. 100 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 13:37:18,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:37:18,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884679057] [2021-11-07 13:37:18,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884679057] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 13:37:18,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855385824] [2021-11-07 13:37:18,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:18,650 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:37:18,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:37:18,651 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 13:37:18,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-07 13:37:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:20,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 5108 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 13:37:20,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 13:37:20,521 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 10 proven. 100 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 13:37:20,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 13:37:20,928 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 10 proven. 100 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 13:37:20,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855385824] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 13:37:20,928 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 13:37:20,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2021-11-07 13:37:20,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680097274] [2021-11-07 13:37:20,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 13:37:20,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-07 13:37:20,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:37:20,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-07 13:37:20,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-07 13:37:20,930 INFO L87 Difference]: Start difference. First operand 45267 states and 64536 transitions. Second operand has 25 states, 25 states have (on average 6.8) internal successors, (170), 25 states have internal predecessors, (170), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:21,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:37:21,841 INFO L93 Difference]: Finished difference Result 90629 states and 129251 transitions. [2021-11-07 13:37:21,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 13:37:21,842 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 6.8) internal successors, (170), 25 states have internal predecessors, (170), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-11-07 13:37:21,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:37:21,939 INFO L225 Difference]: With dead ends: 90629 [2021-11-07 13:37:21,939 INFO L226 Difference]: Without dead ends: 45459 [2021-11-07 13:37:21,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 229.81ms TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-07 13:37:21,995 INFO L933 BasicCegarLoop]: 4320 mSDtfsCounter, 22 mSDsluCounter, 21585 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 25905 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.17ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.16ms IncrementalHoareTripleChecker+Time [2021-11-07 13:37:21,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 25905 Invalid, 70 Unknown, 0 Unchecked, 12.17ms Time], IncrementalHoareTripleChecker [15 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 79.16ms Time] [2021-11-07 13:37:22,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45459 states. [2021-11-07 13:37:22,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45459 to 45459. [2021-11-07 13:37:22,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45459 states, 44977 states have (on average 1.4249727638570826) internal successors, (64091), 45046 states have internal predecessors, (64091), 274 states have call successors, (274), 182 states have call predecessors, (274), 193 states have return successors, (363), 252 states have call predecessors, (363), 274 states have call successors, (363) [2021-11-07 13:37:23,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45459 states to 45459 states and 64728 transitions. [2021-11-07 13:37:23,065 INFO L78 Accepts]: Start accepts. Automaton has 45459 states and 64728 transitions. Word has length 155 [2021-11-07 13:37:23,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:37:23,066 INFO L470 AbstractCegarLoop]: Abstraction has 45459 states and 64728 transitions. [2021-11-07 13:37:23,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 6.8) internal successors, (170), 25 states have internal predecessors, (170), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:37:23,066 INFO L276 IsEmpty]: Start isEmpty. Operand 45459 states and 64728 transitions. [2021-11-07 13:37:23,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-07 13:37:23,079 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:37:23,079 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:37:23,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-07 13:37:23,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-07 13:37:23,299 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:37:23,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:37:23,300 INFO L85 PathProgramCache]: Analyzing trace with hash -309396575, now seen corresponding path program 2 times [2021-11-07 13:37:23,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:37:23,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322920695] [2021-11-07 13:37:23,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:37:23,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:37:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:37:24,011 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 10 proven. 484 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 13:37:24,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:37:24,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322920695] [2021-11-07 13:37:24,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322920695] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 13:37:24,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604144386] [2021-11-07 13:37:24,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 13:37:24,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:37:24,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:37:24,020 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 13:37:24,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process