./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/LexIndexValue-Pointer-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/LexIndexValue-Pointer-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c47e45e477fce3150ee146c7ef7679da7b29387c5fdc0f2faaf105b700984947 --- 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-2329fc7 [2022-12-14 06:49:45,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:49:45,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:49:45,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:49:45,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:49:45,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:49:45,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:49:45,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:49:45,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:49:45,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:49:45,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:49:45,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:49:45,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:49:45,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:49:45,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:49:45,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:49:45,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:49:45,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:49:45,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:49:45,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:49:45,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:49:45,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:49:45,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:49:45,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:49:45,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:49:45,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:49:45,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:49:45,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:49:45,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:49:45,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:49:45,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:49:45,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:49:45,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:49:45,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:49:45,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:49:45,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:49:45,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:49:45,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:49:45,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:49:45,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:49:45,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:49:45,639 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 06:49:45,663 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:49:45,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:49:45,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:49:45,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:49:45,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:49:45,665 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:49:45,665 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:49:45,665 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:49:45,665 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:49:45,665 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:49:45,666 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:49:45,666 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:49:45,666 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:49:45,666 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:49:45,666 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:49:45,666 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:49:45,667 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:49:45,667 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:49:45,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:49:45,667 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:49:45,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:49:45,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:49:45,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:49:45,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:49:45,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:49:45,668 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:49:45,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:49:45,669 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:49:45,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:49:45,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:49:45,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:49:45,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:49:45,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:49:45,670 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:49:45,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:49:45,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:49:45,670 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:49:45,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:49:45,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:49:45,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:49:45,671 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_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c47e45e477fce3150ee146c7ef7679da7b29387c5fdc0f2faaf105b700984947 [2022-12-14 06:49:45,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:49:45,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:49:45,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:49:45,859 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:49:45,859 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:49:45,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/termination-crafted/LexIndexValue-Pointer-1.c [2022-12-14 06:49:48,502 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:49:48,639 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:49:48,639 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/sv-benchmarks/c/termination-crafted/LexIndexValue-Pointer-1.c [2022-12-14 06:49:48,643 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/data/8de43fea2/2ef361907f4d4c34b11ff6e2dbb11fa8/FLAG0132732c3 [2022-12-14 06:49:48,655 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/data/8de43fea2/2ef361907f4d4c34b11ff6e2dbb11fa8 [2022-12-14 06:49:48,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:49:48,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:49:48,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:49:48,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:49:48,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:49:48,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:49:48" (1/1) ... [2022-12-14 06:49:48,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fcc2bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48, skipping insertion in model container [2022-12-14 06:49:48,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:49:48" (1/1) ... [2022-12-14 06:49:48,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:49:48,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:49:48,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:49:48,810 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:49:48,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:49:48,830 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:49:48,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48 WrapperNode [2022-12-14 06:49:48,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:49:48,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:49:48,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:49:48,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:49:48,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48" (1/1) ... [2022-12-14 06:49:48,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48" (1/1) ... [2022-12-14 06:49:48,856 INFO L138 Inliner]: procedures = 9, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2022-12-14 06:49:48,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:49:48,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:49:48,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:49:48,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:49:48,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48" (1/1) ... [2022-12-14 06:49:48,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48" (1/1) ... [2022-12-14 06:49:48,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48" (1/1) ... [2022-12-14 06:49:48,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48" (1/1) ... [2022-12-14 06:49:48,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48" (1/1) ... [2022-12-14 06:49:48,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48" (1/1) ... [2022-12-14 06:49:48,874 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48" (1/1) ... [2022-12-14 06:49:48,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48" (1/1) ... [2022-12-14 06:49:48,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:49:48,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:49:48,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:49:48,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:49:48,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48" (1/1) ... [2022-12-14 06:49:48,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:49:48,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:48,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:49:48,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:49:48,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:49:48,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:49:48,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:49:48,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:49:48,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:49:48,998 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:49:49,000 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:49:49,109 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:49:49,138 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:49:49,138 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 06:49:49,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:49:49 BoogieIcfgContainer [2022-12-14 06:49:49,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:49:49,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:49:49,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:49:49,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:49:49,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:49:48" (1/3) ... [2022-12-14 06:49:49,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba1be0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:49:49, skipping insertion in model container [2022-12-14 06:49:49,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:48" (2/3) ... [2022-12-14 06:49:49,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba1be0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:49:49, skipping insertion in model container [2022-12-14 06:49:49,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:49:49" (3/3) ... [2022-12-14 06:49:49,149 INFO L112 eAbstractionObserver]: Analyzing ICFG LexIndexValue-Pointer-1.c [2022-12-14 06:49:49,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:49:49,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 06:49:49,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:49:49,210 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5bf8df2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:49:49,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 06:49:49,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.8) internal successors, (18), 14 states have internal predecessors, (18), 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) [2022-12-14 06:49:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 06:49:49,219 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:49,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 06:49:49,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:49:49,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:49,225 INFO L85 PathProgramCache]: Analyzing trace with hash 85294, now seen corresponding path program 1 times [2022-12-14 06:49:49,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:49,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70185076] [2022-12-14 06:49:49,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:49,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:49,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:49,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70185076] [2022-12-14 06:49:49,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70185076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:49,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:49:49,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:49:49,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889039331] [2022-12-14 06:49:49,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:49,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:49:49,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:49,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:49:49,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:49:49,460 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.8) internal successors, (18), 14 states have internal predecessors, (18), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-12-14 06:49:49,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:49,515 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2022-12-14 06:49:49,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:49:49,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-12-14 06:49:49,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:49,523 INFO L225 Difference]: With dead ends: 29 [2022-12-14 06:49:49,523 INFO L226 Difference]: Without dead ends: 16 [2022-12-14 06:49:49,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:49:49,527 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:49,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 29 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:49:49,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-14 06:49:49,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-14 06:49:49,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 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) [2022-12-14 06:49:49,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-12-14 06:49:49,552 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 3 [2022-12-14 06:49:49,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:49,553 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-12-14 06:49:49,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-12-14 06:49:49,553 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-12-14 06:49:49,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 06:49:49,553 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:49,553 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 06:49:49,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:49:49,554 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:49:49,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:49,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1753926888, now seen corresponding path program 1 times [2022-12-14 06:49:49,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:49,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605892903] [2022-12-14 06:49:49,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:49,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:49,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:49,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:49,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605892903] [2022-12-14 06:49:49,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605892903] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:49:49,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996988965] [2022-12-14 06:49:49,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:49,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:49,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:49,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:49:49,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:49:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:49,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:49:49,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:49:49,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:49,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:49:49,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996988965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:49,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 06:49:49,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2022-12-14 06:49:49,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835914167] [2022-12-14 06:49:49,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:49,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:49:49,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:49,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:49:49,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:49:49,767 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-12-14 06:49:49,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:49,796 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2022-12-14 06:49:49,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:49:49,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 6 [2022-12-14 06:49:49,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:49,798 INFO L225 Difference]: With dead ends: 16 [2022-12-14 06:49:49,798 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 06:49:49,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:49:49,800 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 14 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:49,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 21 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:49:49,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 06:49:49,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 06:49:49,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 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) [2022-12-14 06:49:49,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-14 06:49:49,805 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2022-12-14 06:49:49,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:49,805 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-14 06:49:49,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-12-14 06:49:49,806 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-14 06:49:49,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 06:49:49,806 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:49,807 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-12-14 06:49:49,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:49:50,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:50,009 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:49:50,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:50,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1462841366, now seen corresponding path program 1 times [2022-12-14 06:49:50,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:50,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856050800] [2022-12-14 06:49:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:50,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:49:50,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:50,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856050800] [2022-12-14 06:49:50,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856050800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:50,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:49:50,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:49:50,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948516994] [2022-12-14 06:49:50,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:50,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:49:50,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:50,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:49:50,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:49:50,139 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-14 06:49:50,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:50,161 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-12-14 06:49:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:49:50,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-12-14 06:49:50,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:50,163 INFO L225 Difference]: With dead ends: 15 [2022-12-14 06:49:50,163 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 06:49:50,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:49:50,165 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:50,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:49:50,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 06:49:50,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 06:49:50,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-12-14 06:49:50,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-12-14 06:49:50,169 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 7 [2022-12-14 06:49:50,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:50,170 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-12-14 06:49:50,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-14 06:49:50,170 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-12-14 06:49:50,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 06:49:50,171 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:50,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:49:50,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:49:50,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:49:50,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:50,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1344073670, now seen corresponding path program 1 times [2022-12-14 06:49:50,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:50,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639667511] [2022-12-14 06:49:50,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:50,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:50,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:50,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639667511] [2022-12-14 06:49:50,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639667511] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:49:50,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358306586] [2022-12-14 06:49:50,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:50,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:50,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:50,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:49:50,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:49:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:50,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:49:50,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:49:50,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:50,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:49:50,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:50,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358306586] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:49:50,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [7734520] [2022-12-14 06:49:50,343 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 06:49:50,343 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:49:50,347 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:49:50,352 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:49:50,352 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:49:50,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 06:49:50,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 17 [2022-12-14 06:49:50,431 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:50,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:50,468 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 27 [2022-12-14 06:49:50,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:50,587 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 06:49:50,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 157 treesize of output 147 [2022-12-14 06:49:50,667 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:50,751 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:50,761 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:49:51,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [7734520] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:51,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:49:51,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4, 4] total 16 [2022-12-14 06:49:51,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074275925] [2022-12-14 06:49:51,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:51,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:49:51,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:51,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:49:51,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-12-14 06:49:51,164 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-12-14 06:49:51,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:51,223 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2022-12-14 06:49:51,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 06:49:51,224 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 9 [2022-12-14 06:49:51,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:51,224 INFO L225 Difference]: With dead ends: 19 [2022-12-14 06:49:51,225 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 06:49:51,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-12-14 06:49:51,226 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:51,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:49:51,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 06:49:51,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-12-14 06:49:51,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 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) [2022-12-14 06:49:51,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-12-14 06:49:51,231 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 9 [2022-12-14 06:49:51,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:51,231 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-12-14 06:49:51,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-12-14 06:49:51,231 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-12-14 06:49:51,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 06:49:51,232 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:51,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:49:51,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:49:51,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:51,433 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:49:51,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:51,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1283389115, now seen corresponding path program 1 times [2022-12-14 06:49:51,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:51,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193071019] [2022-12-14 06:49:51,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:51,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:51,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:51,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193071019] [2022-12-14 06:49:51,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193071019] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:49:51,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792205226] [2022-12-14 06:49:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:51,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:51,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:51,501 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:49:51,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:49:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:51,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:49:51,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:49:51,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:51,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:49:51,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:51,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792205226] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:49:51,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [209261514] [2022-12-14 06:49:51,602 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 06:49:51,602 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:49:51,603 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:49:51,603 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:49:51,603 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:49:51,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 17 [2022-12-14 06:49:51,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 06:49:51,628 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:51,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:51,642 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 27 [2022-12-14 06:49:51,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:51,716 INFO L321 Elim1Store]: treesize reduction 42, result has 19.2 percent of original size [2022-12-14 06:49:51,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 167 treesize of output 154 [2022-12-14 06:49:51,790 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:51,851 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:51,858 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:49:52,267 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '351#(and (= |ULTIMATE.start_main_#t~mem7#1| |ULTIMATE.start_main_#t~post8#1|) (<= 1048 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (= |ULTIMATE.start_main_#t~mem7#1| (select (select |#memory_int| |ULTIMATE.start_main_~q~0#1.base|) |ULTIMATE.start_main_~q~0#1.offset|)) (< 2147483648 |ULTIMATE.start_main_#t~post8#1|) (= |ULTIMATE.start_main_~q~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_main_~q~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 06:49:52,267 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:49:52,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:49:52,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-12-14 06:49:52,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826901201] [2022-12-14 06:49:52,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:49:52,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 06:49:52,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:52,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 06:49:52,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-12-14 06:49:52,269 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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) [2022-12-14 06:49:52,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:52,301 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2022-12-14 06:49:52,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:49:52,302 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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 10 [2022-12-14 06:49:52,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:52,302 INFO L225 Difference]: With dead ends: 35 [2022-12-14 06:49:52,302 INFO L226 Difference]: Without dead ends: 23 [2022-12-14 06:49:52,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2022-12-14 06:49:52,303 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 10 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:52,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 36 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:49:52,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-14 06:49:52,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-12-14 06:49:52,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 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) [2022-12-14 06:49:52,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-12-14 06:49:52,309 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 10 [2022-12-14 06:49:52,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:52,309 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-12-14 06:49:52,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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) [2022-12-14 06:49:52,310 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-12-14 06:49:52,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 06:49:52,310 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:52,310 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:49:52,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 06:49:52,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:52,512 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:49:52,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:52,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1773563515, now seen corresponding path program 2 times [2022-12-14 06:49:52,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:52,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752444050] [2022-12-14 06:49:52,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:52,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:52,707 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:52,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:52,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752444050] [2022-12-14 06:49:52,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752444050] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:49:52,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52984852] [2022-12-14 06:49:52,708 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:49:52,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:52,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:52,709 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:49:52,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:49:52,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 06:49:52,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:49:52,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 06:49:52,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:49:52,772 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:52,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:49:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:52,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52984852] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:49:52,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [640900115] [2022-12-14 06:49:52,831 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 06:49:52,831 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:49:52,831 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:49:52,831 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:49:52,831 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:49:52,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 17 [2022-12-14 06:49:52,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 06:49:52,855 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:52,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:52,871 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 27 [2022-12-14 06:49:52,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:52,928 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 06:49:52,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 144 [2022-12-14 06:49:52,962 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:53,014 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:53,019 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:49:53,471 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '543#(and (= |ULTIMATE.start_main_#t~mem7#1| |ULTIMATE.start_main_#t~post8#1|) (<= 1048 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (= |ULTIMATE.start_main_#t~mem7#1| (select (select |#memory_int| |ULTIMATE.start_main_~q~0#1.base|) |ULTIMATE.start_main_~q~0#1.offset|)) (< 2147483648 |ULTIMATE.start_main_#t~post8#1|) (= |ULTIMATE.start_main_~q~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_main_~q~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 06:49:53,471 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:49:53,471 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:49:53,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-12-14 06:49:53,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896158362] [2022-12-14 06:49:53,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:49:53,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-14 06:49:53,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:53,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-14 06:49:53,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:49:53,473 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 17 states have internal predecessors, (31), 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) [2022-12-14 06:49:53,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:53,575 INFO L93 Difference]: Finished difference Result 47 states and 58 transitions. [2022-12-14 06:49:53,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 06:49:53,575 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 17 states have internal predecessors, (31), 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 16 [2022-12-14 06:49:53,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:53,575 INFO L225 Difference]: With dead ends: 47 [2022-12-14 06:49:53,576 INFO L226 Difference]: Without dead ends: 35 [2022-12-14 06:49:53,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=200, Invalid=792, Unknown=0, NotChecked=0, Total=992 [2022-12-14 06:49:53,576 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 22 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:53,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 64 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:49:53,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-12-14 06:49:53,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-12-14 06:49:53,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:53,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2022-12-14 06:49:53,581 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 16 [2022-12-14 06:49:53,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:53,581 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2022-12-14 06:49:53,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 17 states have internal predecessors, (31), 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) [2022-12-14 06:49:53,581 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-12-14 06:49:53,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 06:49:53,582 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:53,582 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:49:53,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 06:49:53,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:53,783 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:49:53,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:53,784 INFO L85 PathProgramCache]: Analyzing trace with hash -15134203, now seen corresponding path program 3 times [2022-12-14 06:49:53,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:53,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862846534] [2022-12-14 06:49:53,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:53,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:53,998 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:53,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:53,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862846534] [2022-12-14 06:49:53,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862846534] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:49:53,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855701842] [2022-12-14 06:49:53,999 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 06:49:53,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:53,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:54,000 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:49:54,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 06:49:54,047 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 06:49:54,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:49:54,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 06:49:54,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:49:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:54,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:49:54,276 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:54,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855701842] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:49:54,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1634038981] [2022-12-14 06:49:54,278 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 06:49:54,278 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:49:54,278 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:49:54,278 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:49:54,278 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:49:54,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 06:49:54,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 17 [2022-12-14 06:49:54,298 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:54,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:54,310 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 27 [2022-12-14 06:49:54,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:54,372 INFO L321 Elim1Store]: treesize reduction 42, result has 19.2 percent of original size [2022-12-14 06:49:54,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 167 treesize of output 154 [2022-12-14 06:49:54,430 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:54,475 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:54,479 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:49:54,945 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '863#(and (= |ULTIMATE.start_main_#t~mem7#1| |ULTIMATE.start_main_#t~post8#1|) (<= 1048 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (= |ULTIMATE.start_main_#t~mem7#1| (select (select |#memory_int| |ULTIMATE.start_main_~q~0#1.base|) |ULTIMATE.start_main_~q~0#1.offset|)) (< 2147483648 |ULTIMATE.start_main_#t~post8#1|) (= |ULTIMATE.start_main_~q~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_main_~q~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 06:49:54,946 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:49:54,946 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:49:54,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2022-12-14 06:49:54,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203961979] [2022-12-14 06:49:54,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:49:54,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-14 06:49:54,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:54,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-14 06:49:54,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=1387, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 06:49:54,948 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 34 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 33 states have internal predecessors, (55), 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) [2022-12-14 06:49:55,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:55,183 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2022-12-14 06:49:55,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 06:49:55,183 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 33 states have internal predecessors, (55), 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 28 [2022-12-14 06:49:55,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:55,184 INFO L225 Difference]: With dead ends: 71 [2022-12-14 06:49:55,184 INFO L226 Difference]: Without dead ends: 59 [2022-12-14 06:49:55,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 970 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=688, Invalid=2392, Unknown=0, NotChecked=0, Total=3080 [2022-12-14 06:49:55,186 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 62 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:55,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 57 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:49:55,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-12-14 06:49:55,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-12-14 06:49:55,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 57 states have (on average 1.105263157894737) internal successors, (63), 58 states have internal predecessors, (63), 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) [2022-12-14 06:49:55,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2022-12-14 06:49:55,197 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 28 [2022-12-14 06:49:55,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:55,197 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2022-12-14 06:49:55,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 33 states have internal predecessors, (55), 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) [2022-12-14 06:49:55,198 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2022-12-14 06:49:55,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 06:49:55,199 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:55,199 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:49:55,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 06:49:55,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:55,400 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:49:55,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:55,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1487000325, now seen corresponding path program 4 times [2022-12-14 06:49:55,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:55,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395725988] [2022-12-14 06:49:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:55,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:56,036 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:56,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:56,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395725988] [2022-12-14 06:49:56,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395725988] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:49:56,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851185261] [2022-12-14 06:49:56,037 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 06:49:56,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:56,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:56,038 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:49:56,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 06:49:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:56,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-14 06:49:56,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:49:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:56,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:49:56,701 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:56,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851185261] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:49:56,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1528584111] [2022-12-14 06:49:56,703 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 06:49:56,703 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:49:56,703 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:49:56,703 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:49:56,704 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:49:56,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 17 [2022-12-14 06:49:56,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 06:49:56,724 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:56,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:56,738 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 27 [2022-12-14 06:49:56,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:56,795 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 06:49:56,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 157 treesize of output 147 [2022-12-14 06:49:56,849 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:56,897 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:49:56,907 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:49:57,486 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1439#(and (= |ULTIMATE.start_main_#t~mem7#1| |ULTIMATE.start_main_#t~post8#1|) (<= 1048 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (= |ULTIMATE.start_main_#t~mem7#1| (select (select |#memory_int| |ULTIMATE.start_main_~q~0#1.base|) |ULTIMATE.start_main_~q~0#1.offset|)) (< 2147483648 |ULTIMATE.start_main_#t~post8#1|) (= |ULTIMATE.start_main_~q~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_main_~q~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 06:49:57,487 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:49:57,487 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:49:57,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 65 [2022-12-14 06:49:57,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064631727] [2022-12-14 06:49:57,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:49:57,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-12-14 06:49:57,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:57,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-12-14 06:49:57,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1151, Invalid=4251, Unknown=0, NotChecked=0, Total=5402 [2022-12-14 06:49:57,491 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand has 66 states, 66 states have (on average 1.5606060606060606) internal successors, (103), 65 states have internal predecessors, (103), 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) [2022-12-14 06:49:58,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:58,092 INFO L93 Difference]: Finished difference Result 119 states and 142 transitions. [2022-12-14 06:49:58,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-12-14 06:49:58,093 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.5606060606060606) internal successors, (103), 65 states have internal predecessors, (103), 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 52 [2022-12-14 06:49:58,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:58,094 INFO L225 Difference]: With dead ends: 119 [2022-12-14 06:49:58,094 INFO L226 Difference]: Without dead ends: 107 [2022-12-14 06:49:58,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2994 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2624, Invalid=8088, Unknown=0, NotChecked=0, Total=10712 [2022-12-14 06:49:58,097 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 214 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:58,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 50 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:49:58,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-14 06:49:58,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-12-14 06:49:58,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 105 states have (on average 1.0571428571428572) internal successors, (111), 106 states have internal predecessors, (111), 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) [2022-12-14 06:49:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2022-12-14 06:49:58,112 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 52 [2022-12-14 06:49:58,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:58,112 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2022-12-14 06:49:58,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.5606060606060606) internal successors, (103), 65 states have internal predecessors, (103), 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) [2022-12-14 06:49:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2022-12-14 06:49:58,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-14 06:49:58,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:58,115 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:49:58,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 06:49:58,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:58,315 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:49:58,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:58,316 INFO L85 PathProgramCache]: Analyzing trace with hash -354790139, now seen corresponding path program 5 times [2022-12-14 06:49:58,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:58,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771531334] [2022-12-14 06:49:58,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:58,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:59,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:59,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:59,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771531334] [2022-12-14 06:49:59,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771531334] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:49:59,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363166229] [2022-12-14 06:49:59,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:49:59,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:59,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:59,922 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:49:59,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 06:50:16,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2022-12-14 06:50:16,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:50:16,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 64 conjunts are in the unsatisfiable core [2022-12-14 06:50:16,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:50:16,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:50:16,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:50:18,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:50:18,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363166229] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:50:18,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1494484766] [2022-12-14 06:50:18,938 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 06:50:18,938 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:50:18,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:50:18,939 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:50:18,939 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:50:18,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 17 [2022-12-14 06:50:18,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 06:50:18,955 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:50:18,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:50:18,966 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 27 [2022-12-14 06:50:19,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:50:19,009 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 06:50:19,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 144 [2022-12-14 06:50:19,034 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:50:19,093 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:50:19,100 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:50:19,709 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2527#(and (= |ULTIMATE.start_main_#t~mem7#1| |ULTIMATE.start_main_#t~post8#1|) (<= 1048 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (= |ULTIMATE.start_main_#t~mem7#1| (select (select |#memory_int| |ULTIMATE.start_main_~q~0#1.base|) |ULTIMATE.start_main_~q~0#1.offset|)) (< 2147483648 |ULTIMATE.start_main_#t~post8#1|) (= |ULTIMATE.start_main_~q~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_main_~q~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 06:50:19,709 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:50:19,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:50:19,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 129 [2022-12-14 06:50:19,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550882032] [2022-12-14 06:50:19,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:50:19,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-12-14 06:50:19,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:50:19,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-12-14 06:50:19,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4319, Invalid=14587, Unknown=0, NotChecked=0, Total=18906 [2022-12-14 06:50:19,714 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand has 130 states, 130 states have (on average 1.5307692307692307) internal successors, (199), 129 states have internal predecessors, (199), 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) [2022-12-14 06:50:21,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:21,822 INFO L93 Difference]: Finished difference Result 215 states and 254 transitions. [2022-12-14 06:50:21,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-12-14 06:50:21,823 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 1.5307692307692307) internal successors, (199), 129 states have internal predecessors, (199), 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 100 [2022-12-14 06:50:21,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:21,824 INFO L225 Difference]: With dead ends: 215 [2022-12-14 06:50:21,824 INFO L226 Difference]: Without dead ends: 203 [2022-12-14 06:50:21,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 225 SyntacticMatches, 1 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10114 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=10336, Invalid=29464, Unknown=0, NotChecked=0, Total=39800 [2022-12-14 06:50:21,829 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 456 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:21,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 71 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:50:21,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-12-14 06:50:21,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2022-12-14 06:50:21,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 201 states have (on average 1.0298507462686568) internal successors, (207), 202 states have internal predecessors, (207), 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) [2022-12-14 06:50:21,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 207 transitions. [2022-12-14 06:50:21,845 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 207 transitions. Word has length 100 [2022-12-14 06:50:21,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:21,845 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 207 transitions. [2022-12-14 06:50:21,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 1.5307692307692307) internal successors, (199), 129 states have internal predecessors, (199), 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) [2022-12-14 06:50:21,845 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 207 transitions. [2022-12-14 06:50:21,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-12-14 06:50:21,847 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:21,847 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:50:21,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 06:50:22,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-14 06:50:22,049 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:50:22,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:22,050 INFO L85 PathProgramCache]: Analyzing trace with hash 132602117, now seen corresponding path program 6 times [2022-12-14 06:50:22,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:22,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805930359] [2022-12-14 06:50:22,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:22,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:27,943 INFO L134 CoverageAnalysis]: Checked inductivity of 5922 backedges. 0 proven. 5922 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:50:27,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:50:27,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805930359] [2022-12-14 06:50:27,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805930359] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:50:27,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845544119] [2022-12-14 06:50:27,944 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 06:50:27,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:50:27,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:50:27,945 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:50:27,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 06:50:28,081 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 06:50:28,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:50:28,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 128 conjunts are in the unsatisfiable core [2022-12-14 06:50:28,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:50:28,285 INFO L134 CoverageAnalysis]: Checked inductivity of 5922 backedges. 0 proven. 5922 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:50:28,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:50:35,644 INFO L134 CoverageAnalysis]: Checked inductivity of 5922 backedges. 0 proven. 5922 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:50:35,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845544119] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:50:35,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1009581012] [2022-12-14 06:50:35,646 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 06:50:35,646 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:50:35,646 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:50:35,646 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:50:35,647 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:50:35,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 06:50:35,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 17 [2022-12-14 06:50:35,664 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:50:35,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:50:35,673 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 27 [2022-12-14 06:50:35,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:50:35,714 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 06:50:35,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 144 [2022-12-14 06:50:35,746 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:50:35,783 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:50:35,794 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:50:36,922 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4639#(and (= |ULTIMATE.start_main_#t~mem7#1| |ULTIMATE.start_main_#t~post8#1|) (<= 1048 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (= |ULTIMATE.start_main_#t~mem7#1| (select (select |#memory_int| |ULTIMATE.start_main_~q~0#1.base|) |ULTIMATE.start_main_~q~0#1.offset|)) (< 2147483648 |ULTIMATE.start_main_#t~post8#1|) (= |ULTIMATE.start_main_~q~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_main_~q~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 06:50:36,923 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:50:36,923 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:50:36,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 257 [2022-12-14 06:50:36,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990455335] [2022-12-14 06:50:36,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:50:36,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2022-12-14 06:50:36,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:50:36,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2022-12-14 06:50:36,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16799, Invalid=53691, Unknown=0, NotChecked=0, Total=70490 [2022-12-14 06:50:36,933 INFO L87 Difference]: Start difference. First operand 203 states and 207 transitions. Second operand has 258 states, 258 states have (on average 1.5155038759689923) internal successors, (391), 257 states have internal predecessors, (391), 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) [2022-12-14 06:50:45,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:45,290 INFO L93 Difference]: Finished difference Result 407 states and 478 transitions. [2022-12-14 06:50:45,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-12-14 06:50:45,291 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 1.5155038759689923) internal successors, (391), 257 states have internal predecessors, (391), 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 196 [2022-12-14 06:50:45,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:45,292 INFO L225 Difference]: With dead ends: 407 [2022-12-14 06:50:45,292 INFO L226 Difference]: Without dead ends: 395 [2022-12-14 06:50:45,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 840 GetRequests, 449 SyntacticMatches, 1 SemanticMatches, 390 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36642 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=41120, Invalid=112152, Unknown=0, NotChecked=0, Total=153272 [2022-12-14 06:50:45,301 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1382 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:45,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 78 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 06:50:45,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-12-14 06:50:45,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2022-12-14 06:50:45,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 393 states have (on average 1.015267175572519) internal successors, (399), 394 states have internal predecessors, (399), 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) [2022-12-14 06:50:45,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 399 transitions. [2022-12-14 06:50:45,337 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 399 transitions. Word has length 196 [2022-12-14 06:50:45,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:45,338 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 399 transitions. [2022-12-14 06:50:45,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 1.5155038759689923) internal successors, (391), 257 states have internal predecessors, (391), 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) [2022-12-14 06:50:45,338 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 399 transitions. [2022-12-14 06:50:45,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2022-12-14 06:50:45,343 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:45,343 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:50:45,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 06:50:45,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 06:50:45,545 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:50:45,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:45,547 INFO L85 PathProgramCache]: Analyzing trace with hash 74539269, now seen corresponding path program 7 times [2022-12-14 06:50:45,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:45,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703669693] [2022-12-14 06:50:45,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:45,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:08,440 INFO L134 CoverageAnalysis]: Checked inductivity of 24130 backedges. 0 proven. 24130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:08,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:08,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703669693] [2022-12-14 06:51:08,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703669693] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:51:08,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178683351] [2022-12-14 06:51:08,441 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 06:51:08,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:51:08,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:51:08,442 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:51:08,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 06:51:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:08,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1696 conjuncts, 256 conjunts are in the unsatisfiable core [2022-12-14 06:51:08,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:51:09,191 INFO L134 CoverageAnalysis]: Checked inductivity of 24130 backedges. 0 proven. 24130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:09,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:51:42,502 INFO L134 CoverageAnalysis]: Checked inductivity of 24130 backedges. 0 proven. 24130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:42,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178683351] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:51:42,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1316577412] [2022-12-14 06:51:42,504 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 06:51:42,504 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:51:42,505 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:51:42,505 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:51:42,505 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:51:42,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 06:51:42,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 17 [2022-12-14 06:51:42,522 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:51:42,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:51:42,531 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 27 [2022-12-14 06:51:42,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:51:42,570 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 06:51:42,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 144 [2022-12-14 06:51:42,594 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:51:42,633 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-14 06:51:42,635 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:51:44,274 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8799#(and (= |ULTIMATE.start_main_#t~mem7#1| |ULTIMATE.start_main_#t~post8#1|) (<= 1048 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (= |ULTIMATE.start_main_#t~mem7#1| (select (select |#memory_int| |ULTIMATE.start_main_~q~0#1.base|) |ULTIMATE.start_main_~q~0#1.offset|)) (< 2147483648 |ULTIMATE.start_main_#t~post8#1|) (= |ULTIMATE.start_main_~q~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_main_~q~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 06:51:44,274 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:51:44,274 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:51:44,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [256, 256, 256] total 513 [2022-12-14 06:51:44,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634073206] [2022-12-14 06:51:44,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:51:44,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 514 states [2022-12-14 06:51:44,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:44,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 514 interpolants. [2022-12-14 06:51:44,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66335, Invalid=205627, Unknown=0, NotChecked=0, Total=271962 [2022-12-14 06:51:44,308 INFO L87 Difference]: Start difference. First operand 395 states and 399 transitions. Second operand has 514 states, 514 states have (on average 1.5077821011673151) internal successors, (775), 513 states have internal predecessors, (775), 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) [2022-12-14 06:52:31,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:52:31,663 INFO L93 Difference]: Finished difference Result 791 states and 926 transitions. [2022-12-14 06:52:31,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 511 states. [2022-12-14 06:52:31,664 INFO L78 Accepts]: Start accepts. Automaton has has 514 states, 514 states have (on average 1.5077821011673151) internal successors, (775), 513 states have internal predecessors, (775), 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 388 [2022-12-14 06:52:31,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:52:31,667 INFO L225 Difference]: With dead ends: 791 [2022-12-14 06:52:31,667 INFO L226 Difference]: Without dead ends: 779 [2022-12-14 06:52:31,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1672 GetRequests, 897 SyntacticMatches, 1 SemanticMatches, 774 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138850 ImplicationChecksByTransitivity, 69.2s TimeCoverageRelationStatistics Valid=164128, Invalid=437272, Unknown=0, NotChecked=0, Total=601400 [2022-12-14 06:52:31,697 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 3080 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3080 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:52:31,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3080 Valid, 85 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 06:52:31,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2022-12-14 06:52:31,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 779. [2022-12-14 06:52:31,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 777 states have (on average 1.0077220077220077) internal successors, (783), 778 states have internal predecessors, (783), 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) [2022-12-14 06:52:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 783 transitions. [2022-12-14 06:52:31,744 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 783 transitions. Word has length 388 [2022-12-14 06:52:31,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:52:31,744 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 783 transitions. [2022-12-14 06:52:31,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 514 states, 514 states have (on average 1.5077821011673151) internal successors, (775), 513 states have internal predecessors, (775), 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) [2022-12-14 06:52:31,745 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 783 transitions. [2022-12-14 06:52:31,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2022-12-14 06:52:31,758 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:52:31,758 INFO L195 NwaCegarLoop]: trace histogram [255, 255, 255, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:52:31,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 06:52:31,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:52:31,959 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:52:31,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:52:31,962 INFO L85 PathProgramCache]: Analyzing trace with hash 121991429, now seen corresponding path program 8 times [2022-12-14 06:52:31,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:52:31,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357584061] [2022-12-14 06:52:31,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:52:31,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:52:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:25,429 INFO L134 CoverageAnalysis]: Checked inductivity of 97410 backedges. 0 proven. 97410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:54:25,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:25,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357584061] [2022-12-14 06:54:25,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357584061] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:54:25,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125672147] [2022-12-14 06:54:25,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:54:25,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:54:25,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:54:25,431 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:54:25,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a9a02c-f4cc-4aef-8108-f156fe4ddee6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process