./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ss4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ss4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc --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 32bit --witnessprinter.graph.data.programhash cb671fec0d42514b04873418e954f5a2df95ef7f393045434a478c03667a31d2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:11:14,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:11:14,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:11:14,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:11:14,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:11:14,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:11:14,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:11:14,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:11:14,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:11:14,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:11:14,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:11:14,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:11:14,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:11:14,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:11:14,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:11:14,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:11:14,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:11:14,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:11:14,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:11:14,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:11:14,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:11:14,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:11:14,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:11:14,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:11:14,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:11:14,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:11:14,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:11:14,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:11:14,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:11:14,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:11:14,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:11:14,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:11:14,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:11:14,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:11:14,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:11:14,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:11:14,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:11:14,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:11:14,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:11:14,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:11:14,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:11:14,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 21:11:14,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:11:14,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:11:14,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:11:14,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:11:14,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:11:14,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:11:14,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:11:14,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:11:14,719 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:11:14,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:11:14,720 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:11:14,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:11:14,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:11:14,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:11:14,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:11:14,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:11:14,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:11:14,722 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:11:14,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:11:14,723 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:11:14,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:11:14,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:11:14,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:11:14,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:11:14,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:11:14,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:11:14,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:11:14,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:11:14,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:11:14,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:11:14,726 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:11:14,727 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:11:14,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:11:14,727 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_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb671fec0d42514b04873418e954f5a2df95ef7f393045434a478c03667a31d2 [2022-11-02 21:11:15,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:11:15,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:11:15,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:11:15,095 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:11:15,096 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:11:15,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/array-fpi/ss4.c [2022-11-02 21:11:15,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/data/b8be85b82/dddd14587c2c4a5283566830941d8106/FLAGfa137735b [2022-11-02 21:11:15,812 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:11:15,812 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/sv-benchmarks/c/array-fpi/ss4.c [2022-11-02 21:11:15,824 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/data/b8be85b82/dddd14587c2c4a5283566830941d8106/FLAGfa137735b [2022-11-02 21:11:16,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/data/b8be85b82/dddd14587c2c4a5283566830941d8106 [2022-11-02 21:11:16,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:11:16,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:11:16,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:11:16,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:11:16,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:11:16,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:11:16" (1/1) ... [2022-11-02 21:11:16,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d00f15e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16, skipping insertion in model container [2022-11-02 21:11:16,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:11:16" (1/1) ... [2022-11-02 21:11:16,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:11:16,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:11:16,477 WARN L230 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_25abbdf1-f843-48c4-8096-dcf3354dbcdc/sv-benchmarks/c/array-fpi/ss4.c[586,599] [2022-11-02 21:11:16,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:11:16,539 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:11:16,563 WARN L230 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_25abbdf1-f843-48c4-8096-dcf3354dbcdc/sv-benchmarks/c/array-fpi/ss4.c[586,599] [2022-11-02 21:11:16,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:11:16,611 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:11:16,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16 WrapperNode [2022-11-02 21:11:16,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:11:16,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:11:16,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:11:16,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:11:16,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16" (1/1) ... [2022-11-02 21:11:16,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16" (1/1) ... [2022-11-02 21:11:16,673 INFO L138 Inliner]: procedures = 17, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2022-11-02 21:11:16,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:11:16,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:11:16,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:11:16,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:11:16,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16" (1/1) ... [2022-11-02 21:11:16,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16" (1/1) ... [2022-11-02 21:11:16,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16" (1/1) ... [2022-11-02 21:11:16,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16" (1/1) ... [2022-11-02 21:11:16,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16" (1/1) ... [2022-11-02 21:11:16,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16" (1/1) ... [2022-11-02 21:11:16,721 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16" (1/1) ... [2022-11-02 21:11:16,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16" (1/1) ... [2022-11-02 21:11:16,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:11:16,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:11:16,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:11:16,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:11:16,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16" (1/1) ... [2022-11-02 21:11:16,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:11:16,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:16,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:11:16,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:11:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:11:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:11:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:11:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:11:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:11:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:11:16,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:11:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:11:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:11:16,943 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:11:16,945 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:11:17,233 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:11:17,247 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:11:17,248 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-02 21:11:17,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:17 BoogieIcfgContainer [2022-11-02 21:11:17,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:11:17,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:11:17,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:11:17,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:11:17,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:11:16" (1/3) ... [2022-11-02 21:11:17,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654889cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:11:17, skipping insertion in model container [2022-11-02 21:11:17,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:16" (2/3) ... [2022-11-02 21:11:17,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654889cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:11:17, skipping insertion in model container [2022-11-02 21:11:17,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:17" (3/3) ... [2022-11-02 21:11:17,274 INFO L112 eAbstractionObserver]: Analyzing ICFG ss4.c [2022-11-02 21:11:17,309 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:11:17,310 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:11:17,394 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:11:17,404 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@55c439d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:11:17,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:11:17,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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) [2022-11-02 21:11:17,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 21:11:17,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:17,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:17,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:17,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1202110748, now seen corresponding path program 1 times [2022-11-02 21:11:17,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:17,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617592927] [2022-11-02 21:11:17,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:17,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:17,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:17,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617592927] [2022-11-02 21:11:17,629 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 21:11:17,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590132961] [2022-11-02 21:11:17,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:17,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:17,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:17,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:11:17,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:11:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:17,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 21:11:17,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:17,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:17,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:11:17,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590132961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:17,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:17,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:11:17,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906542339] [2022-11-02 21:11:17,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:17,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 21:11:17,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:17,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 21:11:17,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 21:11:17,881 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2022-11-02 21:11:17,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:17,900 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2022-11-02 21:11:17,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 21:11:17,902 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2022-11-02 21:11:17,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:17,912 INFO L225 Difference]: With dead ends: 44 [2022-11-02 21:11:17,912 INFO L226 Difference]: Without dead ends: 20 [2022-11-02 21:11:17,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 21:11:17,919 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:17,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:11:17,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-02 21:11:17,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-02 21:11:17,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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) [2022-11-02 21:11:17,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-11-02 21:11:17,957 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 15 [2022-11-02 21:11:17,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:17,958 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-02 21:11:17,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2022-11-02 21:11:17,959 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-11-02 21:11:17,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 21:11:17,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:17,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:18,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:18,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-02 21:11:18,183 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:18,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:18,184 INFO L85 PathProgramCache]: Analyzing trace with hash -944124056, now seen corresponding path program 1 times [2022-11-02 21:11:18,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:18,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422199229] [2022-11-02 21:11:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:18,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:18,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:18,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422199229] [2022-11-02 21:11:18,247 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 21:11:18,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955183155] [2022-11-02 21:11:18,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:18,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:18,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:18,249 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:11:18,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:11:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:18,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:11:18,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:18,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:18,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:11:18,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955183155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:18,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:18,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:11:18,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672553245] [2022-11-02 21:11:18,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:18,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:11:18,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:18,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:11:18,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:11:18,456 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-02 21:11:18,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:18,551 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2022-11-02 21:11:18,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:11:18,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2022-11-02 21:11:18,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:18,554 INFO L225 Difference]: With dead ends: 41 [2022-11-02 21:11:18,554 INFO L226 Difference]: Without dead ends: 28 [2022-11-02 21:11:18,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:11:18,556 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 27 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:18,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 12 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:18,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-02 21:11:18,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2022-11-02 21:11:18,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 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) [2022-11-02 21:11:18,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-02 21:11:18,565 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2022-11-02 21:11:18,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:18,565 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-02 21:11:18,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-02 21:11:18,566 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-11-02 21:11:18,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:11:18,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:18,567 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:11:18,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:18,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:18,791 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:18,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:18,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1401448688, now seen corresponding path program 1 times [2022-11-02 21:11:18,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:18,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401226946] [2022-11-02 21:11:18,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:18,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:18,856 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:11:18,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2046221037] [2022-11-02 21:11:18,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:18,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:18,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:18,864 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:11:18,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 21:11:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:18,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-02 21:11:18,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:19,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 21:11:19,068 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-02 21:11:19,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-02 21:11:19,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-11-02 21:11:19,654 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-11-02 21:11:19,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2022-11-02 21:11:19,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-11-02 21:11:20,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 31 [2022-11-02 21:11:20,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:20,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:11:21,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 21:11:21,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:21,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:21,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401226946] [2022-11-02 21:11:21,367 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:11:21,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046221037] [2022-11-02 21:11:21,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046221037] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:11:21,367 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:11:21,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2022-11-02 21:11:21,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541835207] [2022-11-02 21:11:21,369 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:11:21,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-02 21:11:21,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:21,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-02 21:11:21,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2022-11-02 21:11:21,378 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 25 states, 25 states have (on average 1.68) internal successors, (42), 25 states have internal predecessors, (42), 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) [2022-11-02 21:11:24,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:24,995 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2022-11-02 21:11:24,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 21:11:24,996 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.68) internal successors, (42), 25 states have internal predecessors, (42), 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 23 [2022-11-02 21:11:24,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:24,997 INFO L225 Difference]: With dead ends: 45 [2022-11-02 21:11:24,997 INFO L226 Difference]: Without dead ends: 41 [2022-11-02 21:11:24,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=155, Invalid=715, Unknown=0, NotChecked=0, Total=870 [2022-11-02 21:11:25,000 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 19 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:25,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 59 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 248 Invalid, 0 Unknown, 4 Unchecked, 1.0s Time] [2022-11-02 21:11:25,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-02 21:11:25,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2022-11-02 21:11:25,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 36 states have internal predecessors, (43), 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) [2022-11-02 21:11:25,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2022-11-02 21:11:25,011 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 23 [2022-11-02 21:11:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:25,011 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2022-11-02 21:11:25,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.68) internal successors, (42), 25 states have internal predecessors, (42), 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) [2022-11-02 21:11:25,012 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-11-02 21:11:25,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-02 21:11:25,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:25,013 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:25,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:25,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:25,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:25,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:25,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1774307726, now seen corresponding path program 2 times [2022-11-02 21:11:25,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:25,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223735086] [2022-11-02 21:11:25,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:25,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:25,283 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:11:25,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1557638654] [2022-11-02 21:11:25,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:11:25,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:25,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:25,291 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:11:25,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 21:11:25,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 21:11:25,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:11:25,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:11:25,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:25,482 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 21:11:25,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:11:25,551 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 21:11:25,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:25,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223735086] [2022-11-02 21:11:25,552 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:11:25,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557638654] [2022-11-02 21:11:25,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557638654] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:11:25,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:11:25,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-02 21:11:25,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617537253] [2022-11-02 21:11:25,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:11:25,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:11:25,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:25,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:11:25,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:11:25,562 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2022-11-02 21:11:25,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:25,782 INFO L93 Difference]: Finished difference Result 79 states and 90 transitions. [2022-11-02 21:11:25,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:11:25,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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 25 [2022-11-02 21:11:25,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:25,786 INFO L225 Difference]: With dead ends: 79 [2022-11-02 21:11:25,786 INFO L226 Difference]: Without dead ends: 53 [2022-11-02 21:11:25,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:11:25,788 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 46 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:25,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 33 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:11:25,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-02 21:11:25,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 38. [2022-11-02 21:11:25,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 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) [2022-11-02 21:11:25,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-11-02 21:11:25,800 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 25 [2022-11-02 21:11:25,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:25,801 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-11-02 21:11:25,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2022-11-02 21:11:25,802 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-11-02 21:11:25,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-02 21:11:25,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:25,803 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:25,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:26,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:26,031 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:26,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:26,031 INFO L85 PathProgramCache]: Analyzing trace with hash 119582130, now seen corresponding path program 3 times [2022-11-02 21:11:26,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:26,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967431374] [2022-11-02 21:11:26,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:26,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:26,082 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:11:26,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770106821] [2022-11-02 21:11:26,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 21:11:26,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:26,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:26,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:11:26,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 21:11:26,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-02 21:11:26,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:11:26,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:11:26,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:26,268 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 21:11:26,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:11:26,339 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 21:11:26,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:26,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967431374] [2022-11-02 21:11:26,340 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:11:26,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770106821] [2022-11-02 21:11:26,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770106821] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:11:26,341 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:11:26,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-02 21:11:26,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283330910] [2022-11-02 21:11:26,342 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:11:26,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:11:26,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:26,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:11:26,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:11:26,344 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2022-11-02 21:11:26,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:26,561 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-11-02 21:11:26,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:11:26,562 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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 25 [2022-11-02 21:11:26,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:26,563 INFO L225 Difference]: With dead ends: 47 [2022-11-02 21:11:26,563 INFO L226 Difference]: Without dead ends: 35 [2022-11-02 21:11:26,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:11:26,565 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 47 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:26,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 23 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:26,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-02 21:11:26,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2022-11-02 21:11:26,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 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) [2022-11-02 21:11:26,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-11-02 21:11:26,575 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 25 [2022-11-02 21:11:26,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:26,575 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-11-02 21:11:26,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2022-11-02 21:11:26,576 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-11-02 21:11:26,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-02 21:11:26,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:26,577 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:26,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:26,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:26,800 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:26,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:26,801 INFO L85 PathProgramCache]: Analyzing trace with hash 666081912, now seen corresponding path program 4 times [2022-11-02 21:11:26,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:26,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921895363] [2022-11-02 21:11:26,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:26,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:26,858 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:11:26,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2007071044] [2022-11-02 21:11:26,862 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 21:11:26,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:26,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:26,864 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:11:26,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25abbdf1-f843-48c4-8096-dcf3354dbcdc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 21:11:27,032 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 21:11:27,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:11:27,039 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 80 conjunts are in the unsatisfiable core [2022-11-02 21:11:27,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:27,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-02 21:11:27,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 21:11:27,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-02 21:11:27,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:11:27,243 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 21:11:27,247 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 21:11:27,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2022-11-02 21:11:27,495 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 21:11:27,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:11:27,528 INFO L356 Elim1Store]: treesize reduction 63, result has 19.2 percent of original size [2022-11-02 21:11:27,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 42 [2022-11-02 21:11:27,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:11:27,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:11:27,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 21:11:27,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2022-11-02 21:11:28,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 21:11:28,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:11:28,054 INFO L356 Elim1Store]: treesize reduction 34, result has 24.4 percent of original size [2022-11-02 21:11:28,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 61 treesize of output 53 [2022-11-02 21:11:28,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:11:28,238 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 21:11:28,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 39 [2022-11-02 21:11:28,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:11:28,420 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-02 21:11:28,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 39 [2022-11-02 21:11:28,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 21:11:28,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:11:28,569 INFO L356 Elim1Store]: treesize reduction 63, result has 19.2 percent of original size [2022-11-02 21:11:28,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 57 treesize of output 46 [2022-11-02 21:11:28,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 21:11:28,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 39 [2022-11-02 21:11:29,100 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 21:11:29,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 38 [2022-11-02 21:11:29,155 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:29,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:11:39,659 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 21:11:39,667 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:39,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:39,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921895363] [2022-11-02 21:11:39,668 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:11:39,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007071044] [2022-11-02 21:11:39,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007071044] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:11:39,669 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:11:39,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25] total 48 [2022-11-02 21:11:39,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201332663] [2022-11-02 21:11:39,670 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:11:39,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-02 21:11:39,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:39,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-02 21:11:39,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1942, Unknown=0, NotChecked=0, Total=2256 [2022-11-02 21:11:39,672 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 48 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 48 states have internal predecessors, (58), 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) [2022-11-02 21:12:08,344 WARN L234 SmtUtils]: Spent 18.46s on a formula simplification that was a NOOP. DAG size: 170 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 21:12:12,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:12:14,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:12:16,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:12:18,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:12:20,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:12:25,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:12:27,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:12:29,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:12:31,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:15:02,268 WARN L234 SmtUtils]: Spent 1.89m on a formula simplification. DAG size of input: 246 DAG size of output: 212 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 21:15:03,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:15:04,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:15:12,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:15:14,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:15:17,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:15:21,128 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse82 (* 8 |c_ULTIMATE.start_main_~i~0#1|))) (let ((.cse17 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse83 (+ .cse82 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse49 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse27 (select .cse49 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse28 (select .cse17 .cse83))) (let ((.cse20 (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (.cse57 (select .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse24 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse27 .cse28))))) (let ((.cse29 (not (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0))) (.cse26 (select .cse24 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse58 (+ .cse27 .cse57)) (.cse3 (+ c_~N~0 (* c_~N~0 c_~N~0))) (.cse7 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse41 (store .cse17 .cse83 1)) (.cse18 (+ .cse82 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse0 (< 2 c_~N~0)) (.cse1 (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse2 (<= c_~N~0 1)) (.cse19 (not .cse20))) (and (or .cse0 .cse1 .cse2 (= .cse3 (let ((.cse5 (let ((.cse16 (store .cse17 .cse18 1))) (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse16))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse11 (select .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse13 (select .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse12 (select (select (store .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse11 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7))) (let ((.cse8 (store .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse11 .cse12 .cse13))))) (store .cse8 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse10 (select .cse8 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse9 (store .cse10 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse10 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse11 .cse12 .cse13)))) (store .cse9 .cse7 (+ (select (select (store .cse8 |c_ULTIMATE.start_main_~a~0#1.base| .cse9) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse10 .cse7)))))))))))))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse4 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse4 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse4)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7)))))) .cse19) (not (<= c_~N~0 0)) (or .cse0 .cse20 (= (let ((.cse21 (store .cse24 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse25 (store .cse26 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse27 .cse28 (select .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|))))) (store .cse25 .cse7 (+ (select .cse26 .cse7) (select (select (store .cse24 |c_ULTIMATE.start_main_~a~0#1.base| .cse25) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))))))) (let ((.cse22 (select .cse21 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse23 (select (select (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse22 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse22 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse23)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7) .cse23)))) .cse3) .cse29) (or .cse0 .cse20 .cse2 .cse29 (= (let ((.cse30 (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse41))) (let ((.cse40 (select .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse36 (select .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse38 (select .cse41 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse37 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse36 .cse38))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7))) (let ((.cse33 (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse36 .cse37 .cse38))))) (store .cse33 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse35 (select .cse33 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse34 (store .cse35 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse36 (select .cse35 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse37 .cse38)))) (store .cse34 .cse7 (+ (select .cse35 .cse7) (select (select (store .cse33 |c_ULTIMATE.start_main_~a~0#1.base| .cse34) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))))))))))))) (let ((.cse31 (select .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse32 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse32)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7) .cse32)))) .cse3)) (or (= .cse3 (let ((.cse42 (let ((.cse48 (select .cse17 .cse18))) (let ((.cse45 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse27 .cse48))))) (store .cse45 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse47 (select .cse45 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse46 (store .cse47 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse27 .cse48 (select .cse47 |c_ULTIMATE.start_main_~a~0#1.offset|))))) (store .cse46 .cse7 (+ (select (select (store .cse45 |c_ULTIMATE.start_main_~a~0#1.base| .cse46) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse47 .cse7)))))))))) (let ((.cse43 (select .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse44 (select (select (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse44)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7) .cse44))))) .cse0 .cse1 .cse19) (or .cse0 .cse2 (= (let ((.cse51 (let ((.cse56 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse58)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7))) (let ((.cse53 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse27 .cse56 .cse57))))) (store .cse53 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse55 (select .cse53 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse54 (store .cse55 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse27 .cse56 (select .cse55 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse57)))) (store .cse54 .cse7 (+ (select .cse55 .cse7) (select (select (store .cse53 |c_ULTIMATE.start_main_~a~0#1.base| .cse54) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))))))) (let ((.cse52 (select .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse50 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse50 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse50)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7))))) .cse3)) (or .cse0 .cse1 (= .cse3 (let ((.cse60 (let ((.cse65 (select .cse26 .cse18))) (let ((.cse62 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse27 .cse28 .cse65))))) (store .cse62 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse64 (select .cse62 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse63 (store .cse64 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse27 .cse28 (select .cse64 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse65)))) (store .cse63 .cse7 (+ (select (select (store .cse62 |c_ULTIMATE.start_main_~a~0#1.base| .cse63) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse64 .cse7)))))))))) (let ((.cse61 (select .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse59 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse59 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse59)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7)))))) .cse19) (or .cse0 (= .cse3 (let ((.cse67 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse69 (store .cse17 |c_ULTIMATE.start_main_~a~0#1.offset| .cse58))) (store .cse69 .cse7 (+ (select .cse17 .cse7) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse69) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))))))) (let ((.cse68 (select .cse67 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse66 (select (select (store .cse67 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse66 (select (select (store .cse67 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse66)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7))))))) (or (= .cse3 (let ((.cse71 (let ((.cse81 (store .cse41 .cse18 1))) (let ((.cse79 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse81))) (let ((.cse80 (select .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse76 (select .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse77 (select .cse81 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse78 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse76 .cse77))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7))) (let ((.cse73 (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse76 .cse77 .cse78))))) (store .cse73 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse75 (select .cse73 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse74 (store .cse75 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse76 .cse77 .cse78 (select .cse75 |c_ULTIMATE.start_main_~a~0#1.offset|))))) (store .cse74 .cse7 (+ (select (select (store .cse73 |c_ULTIMATE.start_main_~a~0#1.base| .cse74) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse75 .cse7)))))))))))))) (let ((.cse72 (select .cse71 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse70 (select (select (store .cse71 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse72 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse70 (select (select (store .cse71 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse72 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse70)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7)))))) .cse0 .cse1 .cse2 .cse19))))))) is different from true [2022-11-02 21:15:23,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:15:26,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:15:32,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:15:34,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []