./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 f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash aaa391796caf9ffd02d820d63142c08953b50843acf6dbe45cefeca4ae26da3b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:37:03,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:37:03,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:37:03,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:37:03,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:37:03,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:37:03,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:37:03,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:37:03,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:37:03,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:37:03,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:37:03,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:37:03,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:37:03,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:37:03,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:37:03,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:37:03,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:37:03,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:37:03,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:37:03,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:37:03,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:37:03,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:37:03,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:37:03,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:37:03,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:37:03,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:37:03,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:37:03,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:37:03,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:37:03,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:37:03,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:37:03,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:37:03,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:37:03,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:37:03,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:37:03,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:37:03,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:37:03,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:37:03,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:37:03,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:37:03,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:37:03,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 10:37:03,694 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:37:03,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:37:03,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:37:03,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:37:03,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:37:03,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:37:03,697 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:37:03,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:37:03,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:37:03,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:37:03,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 10:37:03,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:37:03,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 10:37:03,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:37:03,699 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:37:03,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 10:37:03,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:37:03,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:37:03,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:37:03,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:37:03,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:37:03,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:37:03,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 10:37:03,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:37:03,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 10:37:03,703 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 10:37:03,703 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 10:37:03,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 10:37:03,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:37:03,704 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaa391796caf9ffd02d820d63142c08953b50843acf6dbe45cefeca4ae26da3b [2021-11-09 10:37:04,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:37:04,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:37:04,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:37:04,116 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:37:04,118 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:37:04,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/../../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 [2021-11-09 10:37:04,210 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/data/776c0fad0/2b902f54a9c84a3494a0d3eb490023e1/FLAGd35d0a4d3 [2021-11-09 10:37:05,488 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:37:05,489 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/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 [2021-11-09 10:37:05,565 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/data/776c0fad0/2b902f54a9c84a3494a0d3eb490023e1/FLAGd35d0a4d3 [2021-11-09 10:37:05,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/data/776c0fad0/2b902f54a9c84a3494a0d3eb490023e1 [2021-11-09 10:37:05,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:37:05,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:37:05,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:37:05,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:37:05,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:37:05,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:37:05" (1/1) ... [2021-11-09 10:37:05,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@405b1084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:05, skipping insertion in model container [2021-11-09 10:37:05,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:37:05" (1/1) ... [2021-11-09 10:37:05,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:37:05,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:37:06,650 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5977] [2021-11-09 10:37:06,652 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] [2021-11-09 10:37:07,377 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/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] [2021-11-09 10:37:08,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:37:09,052 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:37:09,260 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5977] [2021-11-09 10:37:09,260 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] [2021-11-09 10:37:09,290 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/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] [2021-11-09 10:37:09,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:37:10,123 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:37:10,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:10 WrapperNode [2021-11-09 10:37:10,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:37:10,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:37:10,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:37:10,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:37:10,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:10" (1/1) ... [2021-11-09 10:37:10,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:10" (1/1) ... [2021-11-09 10:37:11,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:37:11,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:37:11,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:37:11,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:37:11,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:10" (1/1) ... [2021-11-09 10:37:11,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:10" (1/1) ... [2021-11-09 10:37:11,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:10" (1/1) ... [2021-11-09 10:37:11,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:10" (1/1) ... [2021-11-09 10:37:11,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:10" (1/1) ... [2021-11-09 10:37:11,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:10" (1/1) ... [2021-11-09 10:37:11,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:10" (1/1) ... [2021-11-09 10:37:11,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:37:11,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:37:11,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:37:11,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:37:11,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:10" (1/1) ... [2021-11-09 10:37:12,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:37:12,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:37:12,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 10:37:12,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 10:37:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-09 10:37:12,230 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-09 10:37:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-09 10:37:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-09 10:37:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-09 10:37:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure hso_kick_transmit [2021-11-09 10:37:12,232 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_kick_transmit [2021-11-09 10:37:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:37:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-09 10:37:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 10:37:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-09 10:37:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 10:37:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 10:37:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-09 10:37:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure hso_resume [2021-11-09 10:37:12,234 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_resume [2021-11-09 10:37:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-09 10:37:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 10:37:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 10:37:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-09 10:37:12,235 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-09 10:37:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 10:37:12,236 INFO L130 BoogieDeclarations]: Found specification of procedure hso_free_interface [2021-11-09 10:37:12,236 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_free_interface [2021-11-09 10:37:12,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 10:37:12,236 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-09 10:37:12,236 INFO L130 BoogieDeclarations]: Found specification of procedure hso_disconnect [2021-11-09 10:37:12,236 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_disconnect [2021-11-09 10:37:12,237 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-09 10:37:12,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-09 10:37:12,237 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-09 10:37:12,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-09 10:37:12,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:37:12,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:37:12,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:37:52,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:37:52,168 INFO L299 CfgBuilder]: Removed 3032 assume(true) statements. [2021-11-09 10:37:52,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:37:52 BoogieIcfgContainer [2021-11-09 10:37:52,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:37:52,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 10:37:52,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 10:37:52,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 10:37:52,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:37:05" (1/3) ... [2021-11-09 10:37:52,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a9f16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:37:52, skipping insertion in model container [2021-11-09 10:37:52,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:10" (2/3) ... [2021-11-09 10:37:52,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a9f16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:37:52, skipping insertion in model container [2021-11-09 10:37:52,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:37:52" (3/3) ... [2021-11-09 10:37:52,192 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 [2021-11-09 10:37:52,198 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 10:37:52,199 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2021-11-09 10:37:52,295 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 10:37:52,306 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 [2021-11-09 10:37:52,306 INFO L340 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2021-11-09 10:37:52,423 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) [2021-11-09 10:37:52,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-09 10:37:52,434 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:37:52,435 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:37:52,436 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)] === [2021-11-09 10:37:52,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:52,443 INFO L85 PathProgramCache]: Analyzing trace with hash 746580595, now seen corresponding path program 1 times [2021-11-09 10:37:52,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:52,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547171804] [2021-11-09 10:37:52,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:52,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:53,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:53,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547171804] [2021-11-09 10:37:53,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547171804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:53,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:53,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:37:53,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756353229] [2021-11-09 10:37:53,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:37:53,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:53,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:37:53,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:37:53,701 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) [2021-11-09 10:37:54,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:37:54,354 INFO L93 Difference]: Finished difference Result 8585 states and 12315 transitions. [2021-11-09 10:37:54,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:37:54,356 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 [2021-11-09 10:37:54,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:37:54,419 INFO L225 Difference]: With dead ends: 8585 [2021-11-09 10:37:54,420 INFO L226 Difference]: Without dead ends: 5348 [2021-11-09 10:37:54,443 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:37:54,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5348 states. [2021-11-09 10:37:54,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5348 to 5299. [2021-11-09 10:37:54,734 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) [2021-11-09 10:37:54,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 7458 transitions. [2021-11-09 10:37:54,778 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 7458 transitions. Word has length 39 [2021-11-09 10:37:54,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:37:54,781 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 7458 transitions. [2021-11-09 10:37:54,781 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) [2021-11-09 10:37:54,781 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 7458 transitions. [2021-11-09 10:37:54,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-09 10:37:54,792 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:37:54,792 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:37:54,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 10:37:54,793 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)] === [2021-11-09 10:37:54,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:54,797 INFO L85 PathProgramCache]: Analyzing trace with hash 695045669, now seen corresponding path program 1 times [2021-11-09 10:37:54,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:54,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200860985] [2021-11-09 10:37:54,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:54,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:55,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:55,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:55,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200860985] [2021-11-09 10:37:55,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200860985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:55,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:55,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:37:55,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866729252] [2021-11-09 10:37:55,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:37:55,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:55,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:37:55,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:37:55,409 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) [2021-11-09 10:37:56,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:37:56,050 INFO L93 Difference]: Finished difference Result 15243 states and 21563 transitions. [2021-11-09 10:37:56,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:37:56,051 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 [2021-11-09 10:37:56,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:37:56,134 INFO L225 Difference]: With dead ends: 15243 [2021-11-09 10:37:56,135 INFO L226 Difference]: Without dead ends: 10041 [2021-11-09 10:37:56,155 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:37:56,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10041 states. [2021-11-09 10:37:56,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10041 to 9943. [2021-11-09 10:37:56,574 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) [2021-11-09 10:37:56,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9943 states to 9943 states and 14158 transitions. [2021-11-09 10:37:56,829 INFO L78 Accepts]: Start accepts. Automaton has 9943 states and 14158 transitions. Word has length 48 [2021-11-09 10:37:56,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:37:56,830 INFO L470 AbstractCegarLoop]: Abstraction has 9943 states and 14158 transitions. [2021-11-09 10:37:56,831 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) [2021-11-09 10:37:56,831 INFO L276 IsEmpty]: Start isEmpty. Operand 9943 states and 14158 transitions. [2021-11-09 10:37:56,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-09 10:37:56,836 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:37:56,837 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:37:56,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 10:37:56,837 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)] === [2021-11-09 10:37:56,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:56,840 INFO L85 PathProgramCache]: Analyzing trace with hash 895807168, now seen corresponding path program 1 times [2021-11-09 10:37:56,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:56,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506368985] [2021-11-09 10:37:56,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:56,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:57,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:57,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:57,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506368985] [2021-11-09 10:37:57,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506368985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:57,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:57,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:37:57,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511133290] [2021-11-09 10:37:57,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:37:57,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:57,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:37:57,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:37:57,316 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) [2021-11-09 10:37:58,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:37:58,129 INFO L93 Difference]: Finished difference Result 24555 states and 34858 transitions. [2021-11-09 10:37:58,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:37:58,130 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 [2021-11-09 10:37:58,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:37:58,254 INFO L225 Difference]: With dead ends: 24555 [2021-11-09 10:37:58,255 INFO L226 Difference]: Without dead ends: 14709 [2021-11-09 10:37:58,287 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:37:58,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14709 states. [2021-11-09 10:37:58,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14709 to 14603. [2021-11-09 10:37:58,905 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) [2021-11-09 10:37:58,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14603 states to 14603 states and 20752 transitions. [2021-11-09 10:37:58,974 INFO L78 Accepts]: Start accepts. Automaton has 14603 states and 20752 transitions. Word has length 68 [2021-11-09 10:37:58,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:37:58,975 INFO L470 AbstractCegarLoop]: Abstraction has 14603 states and 20752 transitions. [2021-11-09 10:37:58,976 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) [2021-11-09 10:37:58,976 INFO L276 IsEmpty]: Start isEmpty. Operand 14603 states and 20752 transitions. [2021-11-09 10:37:58,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-09 10:37:58,979 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:37:58,980 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:37:58,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 10:37:58,981 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)] === [2021-11-09 10:37:58,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:37:58,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1188807584, now seen corresponding path program 1 times [2021-11-09 10:37:58,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:37:58,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086943255] [2021-11-09 10:37:58,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:37:58,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:37:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:37:59,469 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:37:59,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:37:59,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086943255] [2021-11-09 10:37:59,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086943255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:37:59,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:37:59,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:37:59,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022908892] [2021-11-09 10:37:59,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:37:59,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:37:59,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:37:59,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:37:59,474 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) [2021-11-09 10:37:59,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:37:59,938 INFO L93 Difference]: Finished difference Result 29125 states and 41419 transitions. [2021-11-09 10:37:59,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:37:59,939 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 [2021-11-09 10:37:59,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:00,013 INFO L225 Difference]: With dead ends: 29125 [2021-11-09 10:38:00,013 INFO L226 Difference]: Without dead ends: 14619 [2021-11-09 10:38:00,058 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:00,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14619 states. [2021-11-09 10:38:00,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14619 to 14611. [2021-11-09 10:38:00,518 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) [2021-11-09 10:38:00,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14611 states to 14611 states and 20760 transitions. [2021-11-09 10:38:00,573 INFO L78 Accepts]: Start accepts. Automaton has 14611 states and 20760 transitions. Word has length 74 [2021-11-09 10:38:00,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:00,575 INFO L470 AbstractCegarLoop]: Abstraction has 14611 states and 20760 transitions. [2021-11-09 10:38:00,576 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) [2021-11-09 10:38:00,576 INFO L276 IsEmpty]: Start isEmpty. Operand 14611 states and 20760 transitions. [2021-11-09 10:38:00,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-09 10:38:00,580 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:00,580 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:00,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 10:38:00,581 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)] === [2021-11-09 10:38:00,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:00,581 INFO L85 PathProgramCache]: Analyzing trace with hash 99029244, now seen corresponding path program 1 times [2021-11-09 10:38:00,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:00,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417041277] [2021-11-09 10:38:00,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:00,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:01,057 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:01,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:01,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417041277] [2021-11-09 10:38:01,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417041277] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:38:01,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924265187] [2021-11-09 10:38:01,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:01,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:01,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:01,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:01,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 10:38:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:03,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 4618 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:03,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:04,120 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 10:38:04,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924265187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:04,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:38:04,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-09 10:38:04,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682333320] [2021-11-09 10:38:04,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:04,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:04,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:04,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:04,124 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) [2021-11-09 10:38:04,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:04,610 INFO L93 Difference]: Finished difference Result 29125 states and 41411 transitions. [2021-11-09 10:38:04,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:04,611 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 [2021-11-09 10:38:04,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:04,669 INFO L225 Difference]: With dead ends: 29125 [2021-11-09 10:38:04,669 INFO L226 Difference]: Without dead ends: 14611 [2021-11-09 10:38:04,716 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:04,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14611 states. [2021-11-09 10:38:05,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14611 to 14611. [2021-11-09 10:38:05,202 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) [2021-11-09 10:38:05,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14611 states to 14611 states and 20752 transitions. [2021-11-09 10:38:05,262 INFO L78 Accepts]: Start accepts. Automaton has 14611 states and 20752 transitions. Word has length 76 [2021-11-09 10:38:05,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:05,265 INFO L470 AbstractCegarLoop]: Abstraction has 14611 states and 20752 transitions. [2021-11-09 10:38:05,265 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) [2021-11-09 10:38:05,266 INFO L276 IsEmpty]: Start isEmpty. Operand 14611 states and 20752 transitions. [2021-11-09 10:38:05,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-09 10:38:05,268 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:05,268 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:05,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:05,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:05,486 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)] === [2021-11-09 10:38:05,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:05,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2022257278, now seen corresponding path program 1 times [2021-11-09 10:38:05,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:05,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409060411] [2021-11-09 10:38:05,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:05,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:05,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:05,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409060411] [2021-11-09 10:38:05,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409060411] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:38:05,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118681315] [2021-11-09 10:38:05,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:05,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:05,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:05,945 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:05,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 10:38:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:08,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 4616 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:08,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 10:38:08,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118681315] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:08,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:38:08,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-09 10:38:08,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14228420] [2021-11-09 10:38:08,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:08,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:08,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:08,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:08,615 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) [2021-11-09 10:38:11,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:11,321 INFO L93 Difference]: Finished difference Result 29129 states and 41399 transitions. [2021-11-09 10:38:11,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:11,322 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 [2021-11-09 10:38:11,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:11,386 INFO L225 Difference]: With dead ends: 29129 [2021-11-09 10:38:11,387 INFO L226 Difference]: Without dead ends: 14607 [2021-11-09 10:38:11,425 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:11,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14607 states. [2021-11-09 10:38:12,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14607 to 14461. [2021-11-09 10:38:12,166 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) [2021-11-09 10:38:12,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14461 states to 14461 states and 20570 transitions. [2021-11-09 10:38:12,216 INFO L78 Accepts]: Start accepts. Automaton has 14461 states and 20570 transitions. Word has length 76 [2021-11-09 10:38:12,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:12,216 INFO L470 AbstractCegarLoop]: Abstraction has 14461 states and 20570 transitions. [2021-11-09 10:38:12,217 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) [2021-11-09 10:38:12,217 INFO L276 IsEmpty]: Start isEmpty. Operand 14461 states and 20570 transitions. [2021-11-09 10:38:12,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 10:38:12,221 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:12,222 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:12,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:12,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:12,439 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)] === [2021-11-09 10:38:12,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:12,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1537082192, now seen corresponding path program 1 times [2021-11-09 10:38:12,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:12,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272639731] [2021-11-09 10:38:12,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:12,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:13,023 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:13,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:13,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272639731] [2021-11-09 10:38:13,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272639731] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:38:13,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864481213] [2021-11-09 10:38:13,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:13,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:13,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:13,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:13,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-09 10:38:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:15,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 4665 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:15,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:15,530 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-09 10:38:15,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864481213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:15,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:38:15,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-09 10:38:15,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781193147] [2021-11-09 10:38:15,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:15,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:15,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:15,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:15,534 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) [2021-11-09 10:38:16,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:16,276 INFO L93 Difference]: Finished difference Result 15297 states and 21689 transitions. [2021-11-09 10:38:16,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:16,277 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 [2021-11-09 10:38:16,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:16,335 INFO L225 Difference]: With dead ends: 15297 [2021-11-09 10:38:16,335 INFO L226 Difference]: Without dead ends: 15205 [2021-11-09 10:38:16,344 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:16,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15205 states. [2021-11-09 10:38:16,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15205 to 15073. [2021-11-09 10:38:16,981 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) [2021-11-09 10:38:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15073 states to 15073 states and 21311 transitions. [2021-11-09 10:38:17,040 INFO L78 Accepts]: Start accepts. Automaton has 15073 states and 21311 transitions. Word has length 81 [2021-11-09 10:38:17,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:17,041 INFO L470 AbstractCegarLoop]: Abstraction has 15073 states and 21311 transitions. [2021-11-09 10:38:17,042 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) [2021-11-09 10:38:17,042 INFO L276 IsEmpty]: Start isEmpty. Operand 15073 states and 21311 transitions. [2021-11-09 10:38:17,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-09 10:38:17,057 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:17,058 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:17,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-09 10:38:17,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-09 10:38:17,276 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)] === [2021-11-09 10:38:17,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:17,276 INFO L85 PathProgramCache]: Analyzing trace with hash 85733240, now seen corresponding path program 1 times [2021-11-09 10:38:17,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:17,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517041995] [2021-11-09 10:38:17,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:17,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:17,712 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:17,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:17,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517041995] [2021-11-09 10:38:17,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517041995] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:38:17,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394476176] [2021-11-09 10:38:17,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:17,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:17,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:17,715 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:17,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-09 10:38:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:20,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 4688 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:38:20,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 10:38:20,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394476176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:20,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:38:20,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-09 10:38:20,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251386005] [2021-11-09 10:38:20,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:20,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:20,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:20,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:20,795 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) [2021-11-09 10:38:21,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:21,851 INFO L93 Difference]: Finished difference Result 37837 states and 53535 transitions. [2021-11-09 10:38:21,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:21,852 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 [2021-11-09 10:38:21,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:21,934 INFO L225 Difference]: With dead ends: 37837 [2021-11-09 10:38:21,934 INFO L226 Difference]: Without dead ends: 22861 [2021-11-09 10:38:21,960 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:21,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22861 states. [2021-11-09 10:38:22,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22861 to 22685. [2021-11-09 10:38:22,829 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) [2021-11-09 10:38:22,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22685 states to 22685 states and 32108 transitions. [2021-11-09 10:38:22,909 INFO L78 Accepts]: Start accepts. Automaton has 22685 states and 32108 transitions. Word has length 98 [2021-11-09 10:38:22,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:22,910 INFO L470 AbstractCegarLoop]: Abstraction has 22685 states and 32108 transitions. [2021-11-09 10:38:22,914 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) [2021-11-09 10:38:22,915 INFO L276 IsEmpty]: Start isEmpty. Operand 22685 states and 32108 transitions. [2021-11-09 10:38:22,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-09 10:38:22,925 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:22,926 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:22,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:23,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:23,139 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)] === [2021-11-09 10:38:23,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:23,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1449503104, now seen corresponding path program 1 times [2021-11-09 10:38:23,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:23,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972917388] [2021-11-09 10:38:23,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:23,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:23,755 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:23,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:23,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972917388] [2021-11-09 10:38:23,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972917388] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:38:23,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898848206] [2021-11-09 10:38:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:23,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:23,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:23,758 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:23,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 10:38:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:26,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 4971 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:38:26,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:26,644 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 10:38:26,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898848206] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:26,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:38:26,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-09 10:38:26,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544027399] [2021-11-09 10:38:26,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:26,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:26,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:26,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:26,647 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) [2021-11-09 10:38:27,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:27,483 INFO L93 Difference]: Finished difference Result 55735 states and 79175 transitions. [2021-11-09 10:38:27,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:27,483 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 [2021-11-09 10:38:27,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:27,613 INFO L225 Difference]: With dead ends: 55735 [2021-11-09 10:38:27,613 INFO L226 Difference]: Without dead ends: 33147 [2021-11-09 10:38:27,659 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:27,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33147 states. [2021-11-09 10:38:28,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33147 to 33097. [2021-11-09 10:38:28,915 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) [2021-11-09 10:38:29,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33097 states to 33097 states and 47111 transitions. [2021-11-09 10:38:29,046 INFO L78 Accepts]: Start accepts. Automaton has 33097 states and 47111 transitions. Word has length 114 [2021-11-09 10:38:29,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:29,047 INFO L470 AbstractCegarLoop]: Abstraction has 33097 states and 47111 transitions. [2021-11-09 10:38:29,047 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) [2021-11-09 10:38:29,048 INFO L276 IsEmpty]: Start isEmpty. Operand 33097 states and 47111 transitions. [2021-11-09 10:38:29,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-09 10:38:29,067 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:29,068 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:29,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:29,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:29,291 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)] === [2021-11-09 10:38:29,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:29,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1395952561, now seen corresponding path program 1 times [2021-11-09 10:38:29,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:29,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868763569] [2021-11-09 10:38:29,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:29,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:29,819 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-09 10:38:29,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:29,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868763569] [2021-11-09 10:38:29,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868763569] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:38:29,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645636531] [2021-11-09 10:38:29,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:29,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:29,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:29,827 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:29,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-09 10:38:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:32,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 5042 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:38:32,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:32,588 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-09 10:38:32,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645636531] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:32,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:38:32,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-09 10:38:32,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905949603] [2021-11-09 10:38:32,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:32,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:32,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:32,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:32,591 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) [2021-11-09 10:38:33,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:33,772 INFO L93 Difference]: Finished difference Result 76559 states and 109181 transitions. [2021-11-09 10:38:33,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:33,773 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 [2021-11-09 10:38:33,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:33,940 INFO L225 Difference]: With dead ends: 76559 [2021-11-09 10:38:33,941 INFO L226 Difference]: Without dead ends: 43559 [2021-11-09 10:38:34,003 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:34,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43559 states. [2021-11-09 10:38:35,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43559 to 43509. [2021-11-09 10:38:35,600 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) [2021-11-09 10:38:35,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43509 states to 43509 states and 62126 transitions. [2021-11-09 10:38:35,958 INFO L78 Accepts]: Start accepts. Automaton has 43509 states and 62126 transitions. Word has length 124 [2021-11-09 10:38:35,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:35,959 INFO L470 AbstractCegarLoop]: Abstraction has 43509 states and 62126 transitions. [2021-11-09 10:38:35,959 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) [2021-11-09 10:38:35,959 INFO L276 IsEmpty]: Start isEmpty. Operand 43509 states and 62126 transitions. [2021-11-09 10:38:36,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-09 10:38:36,014 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:36,014 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:36,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:36,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-09 10:38:36,243 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)] === [2021-11-09 10:38:36,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:36,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1683825483, now seen corresponding path program 1 times [2021-11-09 10:38:36,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:36,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323292497] [2021-11-09 10:38:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:36,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:36,612 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-09 10:38:36,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:36,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323292497] [2021-11-09 10:38:36,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323292497] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:38:36,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809612255] [2021-11-09 10:38:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:36,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:36,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:36,615 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:36,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-09 10:38:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:38,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 4888 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:38:38,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:39,054 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-09 10:38:39,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809612255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:39,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:38:39,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-09 10:38:39,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960639191] [2021-11-09 10:38:39,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:39,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:39,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:39,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:39,057 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) [2021-11-09 10:38:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:40,209 INFO L93 Difference]: Finished difference Result 86929 states and 124159 transitions. [2021-11-09 10:38:40,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:40,210 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 [2021-11-09 10:38:40,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:40,324 INFO L225 Difference]: With dead ends: 86929 [2021-11-09 10:38:40,324 INFO L226 Difference]: Without dead ends: 43517 [2021-11-09 10:38:40,411 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:40,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43517 states. [2021-11-09 10:38:41,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43517 to 43517. [2021-11-09 10:38:41,935 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) [2021-11-09 10:38:42,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43517 states to 43517 states and 62134 transitions. [2021-11-09 10:38:42,040 INFO L78 Accepts]: Start accepts. Automaton has 43517 states and 62134 transitions. Word has length 128 [2021-11-09 10:38:42,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:42,041 INFO L470 AbstractCegarLoop]: Abstraction has 43517 states and 62134 transitions. [2021-11-09 10:38:42,041 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) [2021-11-09 10:38:42,041 INFO L276 IsEmpty]: Start isEmpty. Operand 43517 states and 62134 transitions. [2021-11-09 10:38:42,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-09 10:38:42,065 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:42,065 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:42,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-09 10:38:42,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-09 10:38:42,291 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)] === [2021-11-09 10:38:42,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:42,292 INFO L85 PathProgramCache]: Analyzing trace with hash 2130061555, now seen corresponding path program 1 times [2021-11-09 10:38:42,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:42,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404332877] [2021-11-09 10:38:42,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:42,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:42,669 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-09 10:38:42,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:42,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404332877] [2021-11-09 10:38:42,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404332877] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:38:42,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240450881] [2021-11-09 10:38:42,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:42,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:42,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:42,671 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:42,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-09 10:38:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:45,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 4891 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:45,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-09 10:38:45,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240450881] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:38:45,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:38:45,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-11-09 10:38:45,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411694308] [2021-11-09 10:38:45,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:38:45,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:45,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:38:45,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:45,436 INFO L87 Difference]: Start difference. First operand 43517 states and 62134 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:46,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:46,719 INFO L93 Difference]: Finished difference Result 86961 states and 124191 transitions. [2021-11-09 10:38:46,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:46,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-09 10:38:46,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:46,857 INFO L225 Difference]: With dead ends: 86961 [2021-11-09 10:38:46,857 INFO L226 Difference]: Without dead ends: 43541 [2021-11-09 10:38:46,938 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:46,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43541 states. [2021-11-09 10:38:48,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43541 to 43533. [2021-11-09 10:38:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43533 states, 43062 states have (on average 1.4287306674097813) internal successors, (61524), 43120 states have internal predecessors, (61524), 274 states have call successors, (274), 182 states have call predecessors, (274), 182 states have return successors, (352), 252 states have call predecessors, (352), 274 states have call successors, (352) [2021-11-09 10:38:48,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43533 states to 43533 states and 62150 transitions. [2021-11-09 10:38:48,330 INFO L78 Accepts]: Start accepts. Automaton has 43533 states and 62150 transitions. Word has length 128 [2021-11-09 10:38:48,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:48,330 INFO L470 AbstractCegarLoop]: Abstraction has 43533 states and 62150 transitions. [2021-11-09 10:38:48,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:48,330 INFO L276 IsEmpty]: Start isEmpty. Operand 43533 states and 62150 transitions. [2021-11-09 10:38:48,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-09 10:38:48,347 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:48,347 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:48,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:48,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:48,575 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)] === [2021-11-09 10:38:48,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:48,576 INFO L85 PathProgramCache]: Analyzing trace with hash -541828785, now seen corresponding path program 2 times [2021-11-09 10:38:48,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:48,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949394603] [2021-11-09 10:38:48,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:48,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-09 10:38:48,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:48,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949394603] [2021-11-09 10:38:48,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949394603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:48,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:48,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:38:48,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96172789] [2021-11-09 10:38:48,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:48,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:48,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:48,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:48,937 INFO L87 Difference]: Start difference. First operand 43533 states and 62150 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:52,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:52,558 INFO L93 Difference]: Finished difference Result 86985 states and 124207 transitions. [2021-11-09 10:38:52,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:52,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-11-09 10:38:52,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:52,653 INFO L225 Difference]: With dead ends: 86985 [2021-11-09 10:38:52,653 INFO L226 Difference]: Without dead ends: 43533 [2021-11-09 10:38:52,709 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:52,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43533 states. [2021-11-09 10:38:53,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43533 to 43533. [2021-11-09 10:38:53,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43533 states, 43062 states have (on average 1.4285448887650365) internal successors, (61516), 43120 states have internal predecessors, (61516), 274 states have call successors, (274), 182 states have call predecessors, (274), 182 states have return successors, (352), 252 states have call predecessors, (352), 274 states have call successors, (352) [2021-11-09 10:38:53,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43533 states to 43533 states and 62142 transitions. [2021-11-09 10:38:53,999 INFO L78 Accepts]: Start accepts. Automaton has 43533 states and 62142 transitions. Word has length 130 [2021-11-09 10:38:53,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:53,999 INFO L470 AbstractCegarLoop]: Abstraction has 43533 states and 62142 transitions. [2021-11-09 10:38:54,000 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) [2021-11-09 10:38:54,000 INFO L276 IsEmpty]: Start isEmpty. Operand 43533 states and 62142 transitions. [2021-11-09 10:38:54,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-09 10:38:54,020 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:54,020 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:54,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-09 10:38:54,021 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)] === [2021-11-09 10:38:54,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:54,021 INFO L85 PathProgramCache]: Analyzing trace with hash 427842824, now seen corresponding path program 1 times [2021-11-09 10:38:54,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:54,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820858914] [2021-11-09 10:38:54,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:54,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:54,923 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-09 10:38:54,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:54,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820858914] [2021-11-09 10:38:54,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820858914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:54,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:54,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:38:54,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931743048] [2021-11-09 10:38:54,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:54,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:54,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:54,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:54,925 INFO L87 Difference]: Start difference. First operand 43533 states and 62142 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:56,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:56,337 INFO L93 Difference]: Finished difference Result 92079 states and 131610 transitions. [2021-11-09 10:38:56,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:38:56,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-09 10:38:56,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:56,492 INFO L225 Difference]: With dead ends: 92079 [2021-11-09 10:38:56,493 INFO L226 Difference]: Without dead ends: 48643 [2021-11-09 10:38:56,573 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:56,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48643 states. [2021-11-09 10:38:58,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48643 to 45095. [2021-11-09 10:38:58,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45095 states, 44613 states have (on average 1.4284401407661445) internal successors, (63727), 44682 states have internal predecessors, (63727), 274 states have call successors, (274), 182 states have call predecessors, (274), 193 states have return successors, (363), 252 states have call predecessors, (363), 274 states have call successors, (363) [2021-11-09 10:38:58,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45095 states to 45095 states and 64364 transitions. [2021-11-09 10:38:58,572 INFO L78 Accepts]: Start accepts. Automaton has 45095 states and 64364 transitions. Word has length 138 [2021-11-09 10:38:58,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:58,832 INFO L470 AbstractCegarLoop]: Abstraction has 45095 states and 64364 transitions. [2021-11-09 10:38:58,832 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) [2021-11-09 10:38:58,832 INFO L276 IsEmpty]: Start isEmpty. Operand 45095 states and 64364 transitions. [2021-11-09 10:38:58,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-09 10:38:58,854 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:58,855 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:58,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-09 10:38:58,855 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)] === [2021-11-09 10:38:58,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:58,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1195282084, now seen corresponding path program 1 times [2021-11-09 10:38:58,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:58,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409213366] [2021-11-09 10:38:58,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:58,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:59,788 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-09 10:38:59,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:59,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409213366] [2021-11-09 10:38:59,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409213366] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:38:59,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730713] [2021-11-09 10:38:59,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:59,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:59,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:59,795 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:59,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-09 10:39:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:39:02,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 5036 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 10:39:02,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:39:02,468 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-09 10:39:02,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730713] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:39:02,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:39:02,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-09 10:39:02,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108755869] [2021-11-09 10:39:02,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 10:39:02,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:39:02,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 10:39:02,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:39:02,469 INFO L87 Difference]: Start difference. First operand 45095 states and 64364 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:03,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:39:03,926 INFO L93 Difference]: Finished difference Result 90117 states and 128651 transitions. [2021-11-09 10:39:03,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:39:03,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-09 10:39:03,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:39:04,044 INFO L225 Difference]: With dead ends: 90117 [2021-11-09 10:39:04,044 INFO L226 Difference]: Without dead ends: 45119 [2021-11-09 10:39:04,107 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:39:04,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45119 states. [2021-11-09 10:39:05,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45119 to 45111. [2021-11-09 10:39:05,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45111 states, 44629 states have (on average 1.4282865401420601) internal successors, (63743), 44698 states have internal predecessors, (63743), 274 states have call successors, (274), 182 states have call predecessors, (274), 193 states have return successors, (363), 252 states have call predecessors, (363), 274 states have call successors, (363) [2021-11-09 10:39:05,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45111 states to 45111 states and 64380 transitions. [2021-11-09 10:39:05,622 INFO L78 Accepts]: Start accepts. Automaton has 45111 states and 64380 transitions. Word has length 138 [2021-11-09 10:39:05,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:39:05,622 INFO L470 AbstractCegarLoop]: Abstraction has 45111 states and 64380 transitions. [2021-11-09 10:39:05,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:05,623 INFO L276 IsEmpty]: Start isEmpty. Operand 45111 states and 64380 transitions. [2021-11-09 10:39:05,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-09 10:39:05,648 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:39:05,648 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:39:05,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-09 10:39:05,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-09 10:39:05,874 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)] === [2021-11-09 10:39:05,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:39:05,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1238303744, now seen corresponding path program 2 times [2021-11-09 10:39:05,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:39:05,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654852522] [2021-11-09 10:39:05,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:39:05,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:39:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:39:06,718 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-09 10:39:06,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:39:06,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654852522] [2021-11-09 10:39:06,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654852522] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:39:06,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483813634] [2021-11-09 10:39:06,719 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 10:39:06,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:39:06,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:39:06,723 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:39:06,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-09 10:39:09,364 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-09 10:39:09,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 10:39:09,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 4473 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 10:39:09,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:39:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-09 10:39:09,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483813634] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:39:09,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 10:39:09,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2021-11-09 10:39:09,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146743764] [2021-11-09 10:39:09,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:39:09,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:39:09,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:39:09,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-09 10:39:09,804 INFO L87 Difference]: Start difference. First operand 45111 states and 64380 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:11,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:39:11,033 INFO L93 Difference]: Finished difference Result 90345 states and 129343 transitions. [2021-11-09 10:39:11,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:39:11,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-09 10:39:11,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:39:11,165 INFO L225 Difference]: With dead ends: 90345 [2021-11-09 10:39:11,166 INFO L226 Difference]: Without dead ends: 45331 [2021-11-09 10:39:11,256 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-09 10:39:11,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45331 states. [2021-11-09 10:39:12,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45331 to 45155. [2021-11-09 10:39:12,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45155 states, 44673 states have (on average 1.427864705750677) internal successors, (63787), 44742 states have internal predecessors, (63787), 274 states have call successors, (274), 182 states have call predecessors, (274), 193 states have return successors, (363), 252 states have call predecessors, (363), 274 states have call successors, (363) [2021-11-09 10:39:12,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45155 states to 45155 states and 64424 transitions. [2021-11-09 10:39:12,640 INFO L78 Accepts]: Start accepts. Automaton has 45155 states and 64424 transitions. Word has length 140 [2021-11-09 10:39:12,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:39:12,640 INFO L470 AbstractCegarLoop]: Abstraction has 45155 states and 64424 transitions. [2021-11-09 10:39:12,640 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) [2021-11-09 10:39:12,641 INFO L276 IsEmpty]: Start isEmpty. Operand 45155 states and 64424 transitions. [2021-11-09 10:39:12,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-09 10:39:12,657 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:39:12,657 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:39:12,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-09 10:39:12,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-09 10:39:12,871 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)] === [2021-11-09 10:39:12,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:39:12,872 INFO L85 PathProgramCache]: Analyzing trace with hash -2050937611, now seen corresponding path program 1 times [2021-11-09 10:39:12,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:39:12,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441608825] [2021-11-09 10:39:12,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:39:12,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:39:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:39:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-09 10:39:14,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:39:14,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441608825] [2021-11-09 10:39:14,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441608825] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:39:14,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138227918] [2021-11-09 10:39:14,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:39:14,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:39:14,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:39:14,027 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:39:14,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ae8fee-a5ba-42a2-87a4-1fe616f33d41/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process