./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.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 899936809f134b7a18a7ac00d293808544b0e96b14603dc5a591cd3e9a61d6b6 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 15:48:56,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 15:48:56,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 15:48:56,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 15:48:56,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 15:48:56,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 15:48:56,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 15:48:56,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 15:48:56,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 15:48:56,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 15:48:56,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 15:48:56,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 15:48:56,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 15:48:56,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 15:48:56,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 15:48:56,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 15:48:56,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 15:48:56,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 15:48:56,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 15:48:56,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 15:48:56,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 15:48:56,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 15:48:56,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 15:48:56,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 15:48:56,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 15:48:56,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 15:48:56,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 15:48:56,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 15:48:56,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 15:48:56,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 15:48:56,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 15:48:56,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 15:48:56,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 15:48:56,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 15:48:56,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 15:48:56,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 15:48:56,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 15:48:56,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 15:48:56,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 15:48:56,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 15:48:56,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 15:48:56,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 15:48:56,350 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 15:48:56,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 15:48:56,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 15:48:56,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 15:48:56,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 15:48:56,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 15:48:56,352 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 15:48:56,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 15:48:56,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 15:48:56,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 15:48:56,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 15:48:56,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 15:48:56,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 15:48:56,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 15:48:56,354 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 15:48:56,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 15:48:56,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 15:48:56,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 15:48:56,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 15:48:56,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:48:56,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 15:48:56,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 15:48:56,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 15:48:56,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 15:48:56,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 15:48:56,356 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 15:48:56,356 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 15:48:56,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 15:48:56,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 15:48:56,357 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 899936809f134b7a18a7ac00d293808544b0e96b14603dc5a591cd3e9a61d6b6 [2021-11-07 15:48:56,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 15:48:56,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 15:48:56,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 15:48:56,574 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 15:48:56,575 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 15:48:56,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2021-11-07 15:48:56,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c253d6fb3/d8c844b2c4204dac8a223e88de864466/FLAGfd384833c [2021-11-07 15:48:57,310 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 15:48:57,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2021-11-07 15:48:57,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c253d6fb3/d8c844b2c4204dac8a223e88de864466/FLAGfd384833c [2021-11-07 15:48:57,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c253d6fb3/d8c844b2c4204dac8a223e88de864466 [2021-11-07 15:48:57,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 15:48:57,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 15:48:57,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 15:48:57,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 15:48:57,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 15:48:57,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:57" (1/1) ... [2021-11-07 15:48:57,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b571c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:57, skipping insertion in model container [2021-11-07 15:48:57,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:57" (1/1) ... [2021-11-07 15:48:57,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 15:48:57,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 15:49:00,621 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[478203,478216] [2021-11-07 15:49:00,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:49:00,750 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 15:49:01,152 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[478203,478216] [2021-11-07 15:49:01,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:49:01,445 INFO L208 MainTranslator]: Completed translation [2021-11-07 15:49:01,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:01 WrapperNode [2021-11-07 15:49:01,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 15:49:01,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 15:49:01,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 15:49:01,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 15:49:01,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:01" (1/1) ... [2021-11-07 15:49:01,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:01" (1/1) ... [2021-11-07 15:49:08,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 15:49:08,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 15:49:08,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 15:49:08,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 15:49:08,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:01" (1/1) ... [2021-11-07 15:49:08,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:01" (1/1) ... [2021-11-07 15:49:09,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:01" (1/1) ... [2021-11-07 15:49:09,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:01" (1/1) ... [2021-11-07 15:49:11,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:01" (1/1) ... [2021-11-07 15:49:11,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:01" (1/1) ... [2021-11-07 15:49:12,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:01" (1/1) ... [2021-11-07 15:49:12,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 15:49:12,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 15:49:12,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 15:49:12,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 15:49:12,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:01" (1/1) ... [2021-11-07 15:49:12,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:49:12,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:49:12,574 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 15:49:12,579 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 15:49:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 15:49:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 15:49:12,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 15:49:12,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 15:49:12,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 15:49:12,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 15:49:12,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 15:49:12,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 15:49:12,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 15:49:12,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 15:49:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 15:49:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 15:49:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 15:49:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 15:49:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 15:49:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 15:55:35,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 15:55:35,429 INFO L299 CfgBuilder]: Removed 44143 assume(true) statements. [2021-11-07 15:55:35,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:35 BoogieIcfgContainer [2021-11-07 15:55:35,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 15:55:35,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 15:55:35,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 15:55:35,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 15:55:35,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:48:57" (1/3) ... [2021-11-07 15:55:35,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43647742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:35, skipping insertion in model container [2021-11-07 15:55:35,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:01" (2/3) ... [2021-11-07 15:55:35,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43647742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:35, skipping insertion in model container [2021-11-07 15:55:35,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:35" (3/3) ... [2021-11-07 15:55:35,465 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2021-11-07 15:55:35,468 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 15:55:35,469 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-11-07 15:55:35,590 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 15:55:35,594 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 15:55:35,595 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-11-07 15:55:35,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 41575 states, 41532 states have (on average 1.2820716555908698) internal successors, (53247), 41574 states have internal predecessors, (53247), 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 15:55:35,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 15:55:35,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:55:35,957 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] [2021-11-07 15:55:35,957 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 15:55:35,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:55:35,961 INFO L85 PathProgramCache]: Analyzing trace with hash 700650965, now seen corresponding path program 1 times [2021-11-07 15:55:35,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:55:35,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951638762] [2021-11-07 15:55:35,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:55:35,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:55:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:55:36,841 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 15:55:36,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:55:36,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951638762] [2021-11-07 15:55:36,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951638762] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:55:36,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:55:36,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:55:36,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840300111] [2021-11-07 15:55:36,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:55:36,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 15:55:36,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:55:36,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 15:55:36,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:55:36,921 INFO L87 Difference]: Start difference. First operand has 41575 states, 41532 states have (on average 1.2820716555908698) internal successors, (53247), 41574 states have internal predecessors, (53247), 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) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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 15:55:38,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:55:38,033 INFO L93 Difference]: Finished difference Result 83146 states and 106489 transitions. [2021-11-07 15:55:38,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 15:55:38,035 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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 60 [2021-11-07 15:55:38,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:55:38,211 INFO L225 Difference]: With dead ends: 83146 [2021-11-07 15:55:38,212 INFO L226 Difference]: Without dead ends: 38978 [2021-11-07 15:55:38,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:55:38,326 INFO L933 BasicCegarLoop]: 53140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53140 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 113.39ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:55:38,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 53140 Invalid, 0 Unknown, 0 Unchecked, 113.39ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:55:38,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38978 states. [2021-11-07 15:55:39,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38978 to 38978. [2021-11-07 15:55:39,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38978 states, 38936 states have (on average 1.2315337990548592) internal successors, (47951), 38977 states have internal predecessors, (47951), 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 15:55:39,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38978 states to 38978 states and 47951 transitions. [2021-11-07 15:55:39,491 INFO L78 Accepts]: Start accepts. Automaton has 38978 states and 47951 transitions. Word has length 60 [2021-11-07 15:55:39,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:55:39,491 INFO L470 AbstractCegarLoop]: Abstraction has 38978 states and 47951 transitions. [2021-11-07 15:55:39,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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 15:55:39,492 INFO L276 IsEmpty]: Start isEmpty. Operand 38978 states and 47951 transitions. [2021-11-07 15:55:39,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 15:55:39,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:55:39,499 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] [2021-11-07 15:55:39,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 15:55:39,500 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 15:55:39,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:55:39,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1905017125, now seen corresponding path program 1 times [2021-11-07 15:55:39,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:55:39,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233570071] [2021-11-07 15:55:39,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:55:39,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:55:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:55:40,245 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 15:55:40,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:55:40,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233570071] [2021-11-07 15:55:40,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233570071] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:55:40,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:55:40,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:55:40,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77083853] [2021-11-07 15:55:40,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:55:40,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:55:40,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:55:40,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:55:40,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:55:40,248 INFO L87 Difference]: Start difference. First operand 38978 states and 47951 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 15:55:42,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:55:42,422 INFO L93 Difference]: Finished difference Result 101335 states and 124562 transitions. [2021-11-07 15:55:42,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:55:42,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2021-11-07 15:55:42,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:55:42,590 INFO L225 Difference]: With dead ends: 101335 [2021-11-07 15:55:42,591 INFO L226 Difference]: Without dead ends: 62397 [2021-11-07 15:55:42,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.41ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:55:42,663 INFO L933 BasicCegarLoop]: 47950 mSDtfsCounter, 28746 mSDsluCounter, 47781 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 834.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28746 SdHoareTripleChecker+Valid, 95731 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 112.62ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 911.50ms IncrementalHoareTripleChecker+Time [2021-11-07 15:55:42,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28746 Valid, 95731 Invalid, 121 Unknown, 0 Unchecked, 112.62ms Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 911.50ms Time] [2021-11-07 15:55:42,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62397 states. [2021-11-07 15:55:43,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62397 to 62030. [2021-11-07 15:55:43,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62030 states, 61988 states have (on average 1.229931599664451) internal successors, (76241), 62029 states have internal predecessors, (76241), 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 15:55:44,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62030 states to 62030 states and 76241 transitions. [2021-11-07 15:55:44,061 INFO L78 Accepts]: Start accepts. Automaton has 62030 states and 76241 transitions. Word has length 60 [2021-11-07 15:55:44,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:55:44,061 INFO L470 AbstractCegarLoop]: Abstraction has 62030 states and 76241 transitions. [2021-11-07 15:55:44,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 15:55:44,062 INFO L276 IsEmpty]: Start isEmpty. Operand 62030 states and 76241 transitions. [2021-11-07 15:55:44,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 15:55:44,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:55:44,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:55:44,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 15:55:44,064 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 15:55:44,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:55:44,065 INFO L85 PathProgramCache]: Analyzing trace with hash -832216217, now seen corresponding path program 1 times [2021-11-07 15:55:44,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:55:44,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834432007] [2021-11-07 15:55:44,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:55:44,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms