./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:30:49,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:30:49,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:30:49,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:30:49,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:30:49,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:30:49,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:30:49,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:30:49,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:30:49,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:30:49,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:30:49,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:30:49,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:30:49,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:30:49,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:30:49,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:30:49,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:30:49,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:30:49,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:30:49,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:30:49,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:30:49,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:30:49,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:30:49,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:30:49,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:30:49,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:30:49,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:30:49,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:30:49,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:30:49,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:30:49,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:30:49,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:30:49,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:30:49,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:30:49,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:30:49,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:30:49,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:30:49,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:30:49,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:30:49,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:30:49,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:30:49,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2021-11-25 20:30:49,826 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:30:49,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:30:49,827 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:30:49,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:30:49,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:30:49,828 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:30:49,828 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:30:49,829 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:30:49,829 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:30:49,829 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:30:49,829 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:30:49,829 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:30:49,830 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:30:49,830 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:30:49,830 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:30:49,831 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:30:49,831 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:30:49,831 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:30:49,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 20:30:49,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 20:30:49,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:30:49,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 20:30:49,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:30:49,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:30:49,834 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-25 20:30:49,834 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-25 20:30:49,834 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-25 20:30:49,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:30:49,835 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 20:30:49,835 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:30:49,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:30:49,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:30:49,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:30:49,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:30:49,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:30:49,859 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:30:49,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:30:49,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:30:49,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:30:49,860 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 [2021-11-25 20:30:50,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:30:50,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:30:50,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:30:50,222 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:30:50,223 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:30:50,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2021-11-25 20:30:50,304 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/data/ea9f090c5/b201acee39144eafb01f3370305342ff/FLAG5c507e50e [2021-11-25 20:30:50,892 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:30:50,892 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2021-11-25 20:30:50,905 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/data/ea9f090c5/b201acee39144eafb01f3370305342ff/FLAG5c507e50e [2021-11-25 20:30:51,239 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/data/ea9f090c5/b201acee39144eafb01f3370305342ff [2021-11-25 20:30:51,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:30:51,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:30:51,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:30:51,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:30:51,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:30:51,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:30:51" (1/1) ... [2021-11-25 20:30:51,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be4142c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:51, skipping insertion in model container [2021-11-25 20:30:51,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:30:51" (1/1) ... [2021-11-25 20:30:51,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:30:51,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:30:51,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:30:51,516 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:30:51,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:30:51,561 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:30:51,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:51 WrapperNode [2021-11-25 20:30:51,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:30:51,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:30:51,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:30:51,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:30:51,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:51" (1/1) ... [2021-11-25 20:30:51,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:51" (1/1) ... [2021-11-25 20:30:51,619 INFO L137 Inliner]: procedures = 7, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2021-11-25 20:30:51,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:30:51,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:30:51,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:30:51,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:30:51,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:51" (1/1) ... [2021-11-25 20:30:51,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:51" (1/1) ... [2021-11-25 20:30:51,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:51" (1/1) ... [2021-11-25 20:30:51,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:51" (1/1) ... [2021-11-25 20:30:51,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:51" (1/1) ... [2021-11-25 20:30:51,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:51" (1/1) ... [2021-11-25 20:30:51,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:51" (1/1) ... [2021-11-25 20:30:51,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:30:51,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:30:51,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:30:51,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:30:51,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:51" (1/1) ... [2021-11-25 20:30:51,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:30:51,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:30:51,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:30:51,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:30:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:30:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:30:51,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:30:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:30:51,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:30:51,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:30:51,880 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:30:51,883 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:30:52,289 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:30:52,318 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:30:52,327 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 20:30:52,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:30:52 BoogieIcfgContainer [2021-11-25 20:30:52,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:30:52,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:30:52,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:30:52,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:30:52,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:30:51" (1/3) ... [2021-11-25 20:30:52,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10782feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:30:52, skipping insertion in model container [2021-11-25 20:30:52,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:51" (2/3) ... [2021-11-25 20:30:52,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10782feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:30:52, skipping insertion in model container [2021-11-25 20:30:52,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:30:52" (3/3) ... [2021-11-25 20:30:52,345 INFO L111 eAbstractionObserver]: Analyzing ICFG 4BitCounterPointer.c [2021-11-25 20:30:52,356 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:30:52,356 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-11-25 20:30:52,424 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:30:52,442 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:30:52,442 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-11-25 20:30:52,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 53 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:52,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:30:52,489 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:52,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:30:52,491 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:30:52,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:52,500 INFO L85 PathProgramCache]: Analyzing trace with hash 3476, now seen corresponding path program 1 times [2021-11-25 20:30:52,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:30:52,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006906070] [2021-11-25 20:30:52,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:52,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:30:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:52,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:52,842 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:30:52,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006906070] [2021-11-25 20:30:52,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006906070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:52,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:52,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:30:52,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178398569] [2021-11-25 20:30:52,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:52,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:52,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:30:52,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:52,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:52,897 INFO L87 Difference]: Start difference. First operand has 54 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 53 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:53,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:53,017 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2021-11-25 20:30:53,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:53,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-25 20:30:53,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:53,037 INFO L225 Difference]: With dead ends: 50 [2021-11-25 20:30:53,037 INFO L226 Difference]: Without dead ends: 49 [2021-11-25 20:30:53,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:53,046 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 49 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:53,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 20 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:30:53,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-25 20:30:53,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-11-25 20:30:53,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 48 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:53,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2021-11-25 20:30:53,124 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 2 [2021-11-25 20:30:53,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:53,124 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2021-11-25 20:30:53,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:53,125 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2021-11-25 20:30:53,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:30:53,126 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:53,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:30:53,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:30:53,127 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:30:53,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:53,131 INFO L85 PathProgramCache]: Analyzing trace with hash 3477, now seen corresponding path program 1 times [2021-11-25 20:30:53,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:30:53,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128697273] [2021-11-25 20:30:53,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:53,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:30:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:53,302 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:30:53,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128697273] [2021-11-25 20:30:53,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128697273] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:53,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:53,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:30:53,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682065506] [2021-11-25 20:30:53,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:53,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:53,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:30:53,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:53,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:53,308 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:53,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:53,400 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2021-11-25 20:30:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:53,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-25 20:30:53,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:53,402 INFO L225 Difference]: With dead ends: 45 [2021-11-25 20:30:53,402 INFO L226 Difference]: Without dead ends: 45 [2021-11-25 20:30:53,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:53,405 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:53,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 21 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:30:53,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-25 20:30:53,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-25 20:30:53,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 44 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:53,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2021-11-25 20:30:53,414 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 2 [2021-11-25 20:30:53,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:53,415 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2021-11-25 20:30:53,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:53,416 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2021-11-25 20:30:53,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 20:30:53,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:53,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-25 20:30:53,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:30:53,417 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:30:53,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:53,418 INFO L85 PathProgramCache]: Analyzing trace with hash 107732, now seen corresponding path program 1 times [2021-11-25 20:30:53,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:30:53,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774423667] [2021-11-25 20:30:53,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:53,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:30:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:53,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:53,476 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:30:53,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774423667] [2021-11-25 20:30:53,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774423667] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:53,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:53,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:30:53,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789302970] [2021-11-25 20:30:53,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:53,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:53,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:30:53,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:53,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:53,480 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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) [2021-11-25 20:30:53,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:53,538 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2021-11-25 20:30:53,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:53,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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 [2021-11-25 20:30:53,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:53,540 INFO L225 Difference]: With dead ends: 41 [2021-11-25 20:30:53,540 INFO L226 Difference]: Without dead ends: 41 [2021-11-25 20:30:53,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:53,543 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:53,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 16 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:30:53,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-25 20:30:53,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-11-25 20:30:53,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 22 states have (on average 2.0) internal successors, (44), 40 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:53,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2021-11-25 20:30:53,551 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 3 [2021-11-25 20:30:53,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:53,552 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2021-11-25 20:30:53,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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) [2021-11-25 20:30:53,552 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2021-11-25 20:30:53,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 20:30:53,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:53,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-25 20:30:53,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:30:53,554 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:30:53,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:53,554 INFO L85 PathProgramCache]: Analyzing trace with hash 107733, now seen corresponding path program 1 times [2021-11-25 20:30:53,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:30:53,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561073202] [2021-11-25 20:30:53,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:53,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:30:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:53,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:53,633 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:30:53,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561073202] [2021-11-25 20:30:53,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561073202] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:53,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:53,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:30:53,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914434759] [2021-11-25 20:30:53,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:53,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:53,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:30:53,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:53,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:53,637 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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) [2021-11-25 20:30:53,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:53,720 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2021-11-25 20:30:53,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:53,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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 [2021-11-25 20:30:53,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:53,723 INFO L225 Difference]: With dead ends: 37 [2021-11-25 20:30:53,723 INFO L226 Difference]: Without dead ends: 37 [2021-11-25 20:30:53,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:53,726 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:53,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 17 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:30:53,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-25 20:30:53,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-11-25 20:30:53,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 36 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:53,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2021-11-25 20:30:53,733 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 3 [2021-11-25 20:30:53,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:53,734 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2021-11-25 20:30:53,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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) [2021-11-25 20:30:53,734 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2021-11-25 20:30:53,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 20:30:53,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:53,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 20:30:53,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:30:53,736 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:30:53,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:53,737 INFO L85 PathProgramCache]: Analyzing trace with hash 3339671, now seen corresponding path program 1 times [2021-11-25 20:30:53,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:30:53,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626910070] [2021-11-25 20:30:53,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:53,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:30:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:53,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:53,804 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:30:53,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626910070] [2021-11-25 20:30:53,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626910070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:53,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:53,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:30:53,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564823853] [2021-11-25 20:30:53,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:53,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:53,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:30:53,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:53,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:53,812 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:53,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:53,870 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2021-11-25 20:30:53,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:53,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2021-11-25 20:30:53,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:53,876 INFO L225 Difference]: With dead ends: 33 [2021-11-25 20:30:53,876 INFO L226 Difference]: Without dead ends: 33 [2021-11-25 20:30:53,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:53,882 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:53,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 12 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:30:53,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-25 20:30:53,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-25 20:30:53,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:53,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2021-11-25 20:30:53,906 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 4 [2021-11-25 20:30:53,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:53,907 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2021-11-25 20:30:53,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:53,912 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2021-11-25 20:30:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 20:30:53,912 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:53,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 20:30:53,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:30:53,913 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:30:53,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:53,914 INFO L85 PathProgramCache]: Analyzing trace with hash 3339672, now seen corresponding path program 1 times [2021-11-25 20:30:53,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:30:53,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049843863] [2021-11-25 20:30:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:53,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:30:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:54,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:54,014 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:30:54,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049843863] [2021-11-25 20:30:54,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049843863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:54,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:54,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:30:54,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312999710] [2021-11-25 20:30:54,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:54,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:54,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:30:54,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:54,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:54,018 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:54,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:54,083 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-11-25 20:30:54,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:54,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2021-11-25 20:30:54,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:54,086 INFO L225 Difference]: With dead ends: 29 [2021-11-25 20:30:54,086 INFO L226 Difference]: Without dead ends: 29 [2021-11-25 20:30:54,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:54,092 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:54,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 13 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:30:54,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-25 20:30:54,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-25 20:30:54,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:54,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2021-11-25 20:30:54,108 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 4 [2021-11-25 20:30:54,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:54,108 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2021-11-25 20:30:54,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:54,109 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2021-11-25 20:30:54,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 20:30:54,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:54,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 20:30:54,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:30:54,110 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:30:54,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:54,111 INFO L85 PathProgramCache]: Analyzing trace with hash 103529783, now seen corresponding path program 1 times [2021-11-25 20:30:54,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:30:54,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457645500] [2021-11-25 20:30:54,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:54,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:30:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:54,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:54,212 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:30:54,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457645500] [2021-11-25 20:30:54,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457645500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:54,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:54,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:30:54,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974855039] [2021-11-25 20:30:54,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:54,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:54,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:30:54,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:54,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:54,219 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:54,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:54,269 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2021-11-25 20:30:54,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:54,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-11-25 20:30:54,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:54,274 INFO L225 Difference]: With dead ends: 26 [2021-11-25 20:30:54,274 INFO L226 Difference]: Without dead ends: 26 [2021-11-25 20:30:54,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:54,280 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:54,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 9 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:30:54,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-25 20:30:54,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-25 20:30:54,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:54,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2021-11-25 20:30:54,299 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 5 [2021-11-25 20:30:54,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:54,299 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2021-11-25 20:30:54,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:54,300 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2021-11-25 20:30:54,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 20:30:54,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:54,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 20:30:54,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:30:54,301 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:30:54,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:54,302 INFO L85 PathProgramCache]: Analyzing trace with hash 103529784, now seen corresponding path program 1 times [2021-11-25 20:30:54,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:30:54,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389585215] [2021-11-25 20:30:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:54,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:30:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:54,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:54,377 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:30:54,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389585215] [2021-11-25 20:30:54,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389585215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:54,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:54,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:30:54,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785854999] [2021-11-25 20:30:54,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:54,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:54,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:30:54,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:54,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:54,380 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:54,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:54,420 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2021-11-25 20:30:54,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:54,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-11-25 20:30:54,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:54,422 INFO L225 Difference]: With dead ends: 23 [2021-11-25 20:30:54,422 INFO L226 Difference]: Without dead ends: 23 [2021-11-25 20:30:54,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:54,426 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:54,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 10 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:30:54,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-25 20:30:54,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-11-25 20:30:54,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:54,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-11-25 20:30:54,439 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 5 [2021-11-25 20:30:54,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:54,440 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-11-25 20:30:54,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:54,446 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-11-25 20:30:54,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 20:30:54,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:54,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:54,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:30:54,447 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:30:54,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:54,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1661417693, now seen corresponding path program 1 times [2021-11-25 20:30:54,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:30:54,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710986848] [2021-11-25 20:30:54,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:54,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:30:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:54,503 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:30:54,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710986848] [2021-11-25 20:30:54,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710986848] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:54,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:54,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:30:54,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442759518] [2021-11-25 20:30:54,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:54,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:30:54,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:30:54,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:30:54,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:30:54,508 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-11-25 20:30:54,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:54,601 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2021-11-25 20:30:54,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:30:54,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 [2021-11-25 20:30:54,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:54,603 INFO L225 Difference]: With dead ends: 38 [2021-11-25 20:30:54,603 INFO L226 Difference]: Without dead ends: 38 [2021-11-25 20:30:54,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:30:54,607 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:54,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 35 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:30:54,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-25 20:30:54,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 25. [2021-11-25 20:30:54,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:54,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2021-11-25 20:30:54,619 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 9 [2021-11-25 20:30:54,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:54,619 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2021-11-25 20:30:54,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-11-25 20:30:54,620 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2021-11-25 20:30:54,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 20:30:54,621 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:54,621 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:54,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:30:54,622 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:30:54,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:54,623 INFO L85 PathProgramCache]: Analyzing trace with hash -723063482, now seen corresponding path program 1 times [2021-11-25 20:30:54,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:30:54,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76626060] [2021-11-25 20:30:54,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:54,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:30:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:54,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:54,820 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:30:54,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76626060] [2021-11-25 20:30:54,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76626060] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:30:54,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009150067] [2021-11-25 20:30:54,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:54,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:30:54,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:30:54,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:30:54,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:30:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:54,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-25 20:30:54,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:55,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-11-25 20:30:55,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:30:55,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:30:55,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:30:55,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:55,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:30:55,301 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_225 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_225) |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0)) is different from false [2021-11-25 20:30:55,376 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:55,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2021-11-25 20:30:55,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2021-11-25 20:30:55,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-25 20:30:55,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009150067] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:30:55,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1299259399] [2021-11-25 20:30:55,437 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2021-11-25 20:30:55,437 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:30:55,442 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:30:55,449 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:30:55,450 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:30:55,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 20:30:55,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:30:55,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-25 20:30:55,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:30:55,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:55,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:30:56,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:56,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:56,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:56,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:56,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:56,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:56,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:30:56,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:56,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:56,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:56,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:56,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:56,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:56,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:30:57,407 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:31:04,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1299259399] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:31:04,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:31:04,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6, 5, 5] total 15 [2021-11-25 20:31:04,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073679425] [2021-11-25 20:31:04,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:31:04,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:31:04,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:31:04,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:31:04,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=147, Unknown=1, NotChecked=26, Total=240 [2021-11-25 20:31:04,764 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:31:06,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:31:06,618 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2021-11-25 20:31:06,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 20:31:06,618 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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 14 [2021-11-25 20:31:06,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:31:06,619 INFO L225 Difference]: With dead ends: 75 [2021-11-25 20:31:06,619 INFO L226 Difference]: Without dead ends: 75 [2021-11-25 20:31:06,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=92, Invalid=183, Unknown=1, NotChecked=30, Total=306 [2021-11-25 20:31:06,620 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 70 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:31:06,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 63 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 20:31:06,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-25 20:31:06,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 32. [2021-11-25 20:31:06,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:31:06,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2021-11-25 20:31:06,627 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 14 [2021-11-25 20:31:06,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:31:06,627 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2021-11-25 20:31:06,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:31:06,628 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2021-11-25 20:31:06,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-25 20:31:06,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:31:06,629 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:31:06,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:31:06,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-25 20:31:06,855 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:31:06,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:31:06,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1385146651, now seen corresponding path program 1 times [2021-11-25 20:31:06,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:31:06,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900929883] [2021-11-25 20:31:06,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:31:06,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:31:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:31:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:31:07,336 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:31:07,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900929883] [2021-11-25 20:31:07,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900929883] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:31:07,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917485110] [2021-11-25 20:31:07,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:31:07,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:31:07,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:31:07,339 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:31:07,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:31:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:31:07,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-25 20:31:07,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:31:07,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2021-11-25 20:31:07,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:31:07,762 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:31:07,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2021-11-25 20:31:07,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:31:07,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:31:07,868 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:31:07,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:31:07,890 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_296 (Array Int Int))) (= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_296) |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|))) is different from false [2021-11-25 20:31:07,907 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_296 (Array Int Int)) (v_ArrVal_295 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_295) |c_ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_296) |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0)) is different from false [2021-11-25 20:31:08,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 117 [2021-11-25 20:31:08,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 86 [2021-11-25 20:31:08,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 78 [2021-11-25 20:31:08,204 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-25 20:31:08,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917485110] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:31:08,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1283993965] [2021-11-25 20:31:08,208 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2021-11-25 20:31:08,209 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:31:08,209 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:31:08,209 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:31:08,210 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:31:08,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 20:31:08,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:31:08,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-25 20:31:08,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:31:08,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:31:08,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:08,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:09,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:09,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:09,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:09,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:09,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:10,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:10,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:10,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:10,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:11,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:11,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:11,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:11,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:11,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:12,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:12,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:12,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:12,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:12,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:12,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:12,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:12,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:12,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:12,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:12,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:12,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:12,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:12,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:12,624 INFO L354 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2021-11-25 20:31:12,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 20:31:12,861 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:31:12,862 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:31:12,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:31:12,954 INFO L354 Elim1Store]: treesize reduction 68, result has 42.4 percent of original size [2021-11-25 20:31:12,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 275 treesize of output 296 [2021-11-25 20:31:13,438 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:31:19,457 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1072#(and (<= |ULTIMATE.start_main_~x2~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x1~0#1.base|) (<= |ULTIMATE.start_main_~x1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x0~0#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= 0 |ULTIMATE.start_main_~x3~0#1.base|) (<= 0 |ULTIMATE.start_main_~x1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x3~0#1.offset|) (<= |ULTIMATE.start_main_~x3~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.base|) (<= 0 |ULTIMATE.start_main_~x0~0#1.base|) (<= |ULTIMATE.start_main_~x0~0#1.offset| 0) (= |#NULL.offset| 0) (exists ((|v_ULTIMATE.start_main_#t~malloc3#1.base_9| Int)) (and (<= 0 |v_ULTIMATE.start_main_#t~malloc3#1.base_9|) (= (select |#valid| |v_ULTIMATE.start_main_#t~malloc3#1.base_9|) 0))) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 20:31:19,457 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:31:19,457 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:31:19,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2021-11-25 20:31:19,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034375098] [2021-11-25 20:31:19,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:31:19,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-25 20:31:19,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:31:19,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-25 20:31:19,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1125, Unknown=2, NotChecked=142, Total=1482 [2021-11-25 20:31:19,461 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 24 states, 24 states have (on average 2.4583333333333335) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:31:20,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:31:20,255 INFO L93 Difference]: Finished difference Result 66 states and 75 transitions. [2021-11-25 20:31:20,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 20:31:20,256 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.4583333333333335) internal successors, (59), 23 states have internal predecessors, (59), 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 22 [2021-11-25 20:31:20,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:31:20,257 INFO L225 Difference]: With dead ends: 66 [2021-11-25 20:31:20,257 INFO L226 Difference]: Without dead ends: 66 [2021-11-25 20:31:20,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=422, Invalid=1936, Unknown=2, NotChecked=190, Total=2550 [2021-11-25 20:31:20,261 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 102 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 120 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:31:20,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 120 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 240 Invalid, 0 Unknown, 120 Unchecked, 0.2s Time] [2021-11-25 20:31:20,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-25 20:31:20,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 42. [2021-11-25 20:31:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 41 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:31:20,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2021-11-25 20:31:20,279 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 22 [2021-11-25 20:31:20,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:31:20,280 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2021-11-25 20:31:20,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4583333333333335) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:31:20,280 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2021-11-25 20:31:20,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-25 20:31:20,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:31:20,282 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:31:20,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:31:20,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:31:20,495 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:31:20,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:31:20,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1435305227, now seen corresponding path program 1 times [2021-11-25 20:31:20,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:31:20,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608566793] [2021-11-25 20:31:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:31:20,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:31:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:31:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:31:21,255 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:31:21,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608566793] [2021-11-25 20:31:21,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608566793] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:31:21,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33956084] [2021-11-25 20:31:21,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:31:21,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:31:21,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:31:21,259 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:31:21,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:31:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:31:21,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-25 20:31:21,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:31:21,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 198 [2021-11-25 20:31:21,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:31:21,692 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:31:21,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2021-11-25 20:31:21,922 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:31:21,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2021-11-25 20:31:22,065 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:31:22,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 26 [2021-11-25 20:31:22,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:31:22,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:31:22,210 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:31:22,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:31:22,253 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_374 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~x2~0#1.base| v_ArrVal_374) |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0)) is different from false [2021-11-25 20:31:22,280 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_373 (Array Int Int)) (v_ArrVal_374 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_373) |c_ULTIMATE.start_main_~x2~0#1.base| v_ArrVal_374) |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0)) is different from false [2021-11-25 20:31:22,291 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_373 (Array Int Int)) (v_ArrVal_374 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_373) |c_ULTIMATE.start_main_~x2~0#1.base| v_ArrVal_374) |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0)) (= |c_ULTIMATE.start_main_#t~mem6#1| 0)) is different from false [2021-11-25 20:31:22,420 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x1~0#1.base| Int) (v_ArrVal_373 (Array Int Int)) (v_ArrVal_372 (Array Int Int)) (v_ArrVal_374 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_372))) (or (= (select (select (store (store .cse0 |ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_373) |c_ULTIMATE.start_main_~x2~0#1.base| v_ArrVal_374) |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0) (= (select (select .cse0 |ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset|) 0)))) is different from false [2021-11-25 20:31:52,915 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:31:52,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 42 [2021-11-25 20:31:52,929 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:31:52,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 263 treesize of output 258 [2021-11-25 20:31:52,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 210 treesize of output 202 [2021-11-25 20:31:52,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 186 [2021-11-25 20:31:52,994 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:31:52,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 114 [2021-11-25 20:31:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-25 20:31:55,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33956084] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:31:55,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [168486414] [2021-11-25 20:31:55,445 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2021-11-25 20:31:55,445 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:31:55,445 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:31:55,446 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:31:55,446 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:31:55,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 20:31:55,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:31:55,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-25 20:31:55,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:31:55,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:31:55,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:55,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:56,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:56,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:56,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:31:56,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:31:57,029 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:32:05,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [168486414] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:32:05,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:32:05,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13, 12, 12] total 44 [2021-11-25 20:32:05,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476195018] [2021-11-25 20:32:05,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:32:05,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:32:05,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:32:05,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:32:05,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=1315, Unknown=20, NotChecked=324, Total=1980 [2021-11-25 20:32:05,810 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 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) [2021-11-25 20:32:08,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:32:08,972 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2021-11-25 20:32:08,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 20:32:08,973 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 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) Word has length 25 [2021-11-25 20:32:08,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:32:08,974 INFO L225 Difference]: With dead ends: 75 [2021-11-25 20:32:08,974 INFO L226 Difference]: Without dead ends: 75 [2021-11-25 20:32:08,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 44.5s TimeCoverageRelationStatistics Valid=446, Invalid=1530, Unknown=20, NotChecked=356, Total=2352 [2021-11-25 20:32:08,976 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 58 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:32:08,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 68 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 20:32:08,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-25 20:32:08,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 50. [2021-11-25 20:32:08,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.163265306122449) internal successors, (57), 49 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:32:08,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2021-11-25 20:32:08,998 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 25 [2021-11-25 20:32:08,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:32:08,998 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2021-11-25 20:32:08,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 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) [2021-11-25 20:32:08,999 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2021-11-25 20:32:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-25 20:32:09,000 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:32:09,001 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:32:09,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:32:09,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:32:09,222 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:32:09,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:32:09,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1769996822, now seen corresponding path program 1 times [2021-11-25 20:32:09,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:32:09,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175844612] [2021-11-25 20:32:09,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:32:09,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:32:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:32:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:32:09,370 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:32:09,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175844612] [2021-11-25 20:32:09,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175844612] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:32:09,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219163647] [2021-11-25 20:32:09,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:32:09,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:32:09,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:32:09,375 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:32:09,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:32:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:32:09,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-25 20:32:09,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:32:09,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:09,665 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:32:09,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:32:09,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:32:09,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-11-25 20:32:09,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:32:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 20:32:09,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:32:09,999 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x1~0#1.base| Int) (v_ArrVal_453 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_453))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~x0~0#1.base|))) (or (= (select (select (store .cse0 |c_ULTIMATE.start_main_~x0~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~x0~0#1.offset| 0)) |ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset|) 0) (= (select .cse1 |c_ULTIMATE.start_main_~x0~0#1.offset|) 0))))) is different from false [2021-11-25 20:32:10,043 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:32:10,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 40 [2021-11-25 20:32:10,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 81 [2021-11-25 20:32:10,060 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:32:10,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 15 [2021-11-25 20:32:10,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 6 treesize of output 4 [2021-11-25 20:32:10,115 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 2 not checked. [2021-11-25 20:32:10,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219163647] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:32:10,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2097894276] [2021-11-25 20:32:10,122 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2021-11-25 20:32:10,122 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:32:10,122 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:32:10,123 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:32:10,123 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:32:10,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 20:32:10,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:10,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-25 20:32:10,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:32:10,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:32:10,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:10,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:10,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:11,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:11,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:11,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:11,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:11,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:11,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:11,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:12,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:12,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:12,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:12,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:12,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:12,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:12,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:13,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:13,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:13,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:13,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:13,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:13,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:14,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:14,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:14,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:14,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:14,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:15,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:15,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:15,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:15,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:15,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:15,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:16,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:16,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:16,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:16,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:16,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:17,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:17,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:17,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:17,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:17,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:17,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:18,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:18,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:18,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:18,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:18,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:18,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:19,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:19,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:19,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:19,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:19,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:19,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:19,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:20,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:20,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:20,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:20,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:20,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:20,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:20,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:20,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:20,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:20,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:20,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:20,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:20,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:20,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:20,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:20,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:20,628 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:20,629 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:20,655 INFO L354 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2021-11-25 20:32:20,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 39 [2021-11-25 20:32:20,805 INFO L354 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2021-11-25 20:32:20,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 20:32:20,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:20,990 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:32:26,775 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1757#(and (<= |ULTIMATE.start_main_~x2~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x1~0#1.base|) (<= |ULTIMATE.start_main_~x1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x0~0#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= 0 |ULTIMATE.start_main_~x3~0#1.base|) (<= 0 |ULTIMATE.start_main_~x1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x3~0#1.offset|) (<= |ULTIMATE.start_main_~x3~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.base|) (<= 0 |ULTIMATE.start_main_~x0~0#1.base|) (<= |ULTIMATE.start_main_~x0~0#1.offset| 0) (= |#NULL.offset| 0) (exists ((|v_ULTIMATE.start_main_#t~malloc3#1.base_12| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_#t~malloc3#1.base_12|) 0) (<= 0 |v_ULTIMATE.start_main_#t~malloc3#1.base_12|))) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 20:32:26,775 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:32:26,775 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:32:26,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 19 [2021-11-25 20:32:26,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598458403] [2021-11-25 20:32:26,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:32:26,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-25 20:32:26,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:32:26,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-25 20:32:26,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=883, Unknown=1, NotChecked=64, Total=1190 [2021-11-25 20:32:26,779 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 20 states, 20 states have (on average 3.8) internal successors, (76), 19 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:32:26,981 WARN L838 $PredicateComparison]: unable to prove that (and (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~x1~0#1.base|) 0) 0) (forall ((|ULTIMATE.start_main_~x1~0#1.base| Int) (v_ArrVal_453 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_453))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~x0~0#1.base|))) (or (= (select (select (store .cse0 |c_ULTIMATE.start_main_~x0~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~x0~0#1.offset| 0)) |ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset|) 0) (= (select .cse1 |c_ULTIMATE.start_main_~x0~0#1.offset|) 0))))) (= |c_ULTIMATE.start_main_~x1~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~x1~0#1.base| |c_ULTIMATE.start_main_~x0~0#1.base|)) (= |c_ULTIMATE.start_main_~x0~0#1.offset| 0) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~x0~0#1.base|) |c_ULTIMATE.start_main_~x0~0#1.offset|) 0)) is different from false [2021-11-25 20:32:26,984 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~x1~0#1.base| Int) (v_ArrVal_453 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_453))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~x0~0#1.base|))) (or (= (select (select (store .cse0 |c_ULTIMATE.start_main_~x0~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~x0~0#1.offset| 0)) |ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset|) 0) (= (select .cse1 |c_ULTIMATE.start_main_~x0~0#1.offset|) 0))))) (= |c_ULTIMATE.start_main_~x1~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~x1~0#1.base| |c_ULTIMATE.start_main_~x0~0#1.base|)) (= |c_ULTIMATE.start_main_~x0~0#1.offset| 0) (= |c_ULTIMATE.start_main_#t~mem6#1| 0) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~x0~0#1.base|) |c_ULTIMATE.start_main_~x0~0#1.offset|) 0)) is different from false [2021-11-25 20:32:26,987 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~x1~0#1.base| Int) (v_ArrVal_453 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_453))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~x0~0#1.base|))) (or (= (select (select (store .cse0 |c_ULTIMATE.start_main_~x0~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~x0~0#1.offset| 0)) |ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset|) 0) (= (select .cse1 |c_ULTIMATE.start_main_~x0~0#1.offset|) 0))))) (= |c_ULTIMATE.start_main_~x1~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~x1~0#1.base| |c_ULTIMATE.start_main_~x0~0#1.base|)) (= |c_ULTIMATE.start_main_~x0~0#1.offset| 0) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~x0~0#1.base|) |c_ULTIMATE.start_main_~x0~0#1.offset|) 0)) is different from false [2021-11-25 20:32:27,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:32:27,126 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2021-11-25 20:32:27,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 20:32:27,132 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.8) internal successors, (76), 19 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-25 20:32:27,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:32:27,133 INFO L225 Difference]: With dead ends: 65 [2021-11-25 20:32:27,133 INFO L226 Difference]: Without dead ends: 65 [2021-11-25 20:32:27,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 66 SyntacticMatches, 8 SemanticMatches, 42 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=355, Invalid=1217, Unknown=4, NotChecked=316, Total=1892 [2021-11-25 20:32:27,135 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 53 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:32:27,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 106 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 177 Invalid, 0 Unknown, 35 Unchecked, 0.2s Time] [2021-11-25 20:32:27,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-25 20:32:27,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2021-11-25 20:32:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.1612903225806452) internal successors, (72), 62 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:32:27,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2021-11-25 20:32:27,141 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 33 [2021-11-25 20:32:27,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:32:27,142 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2021-11-25 20:32:27,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.8) internal successors, (76), 19 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:32:27,143 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2021-11-25 20:32:27,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-25 20:32:27,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:32:27,144 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:32:27,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:32:27,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-25 20:32:27,361 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:32:27,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:32:27,362 INFO L85 PathProgramCache]: Analyzing trace with hash 257505609, now seen corresponding path program 2 times [2021-11-25 20:32:27,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:32:27,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709654504] [2021-11-25 20:32:27,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:32:27,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:32:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:32:28,017 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:32:28,017 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:32:28,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709654504] [2021-11-25 20:32:28,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709654504] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:32:28,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733587781] [2021-11-25 20:32:28,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:32:28,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:32:28,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:32:28,025 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:32:28,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:32:28,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-25 20:32:28,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:32:28,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-25 20:32:28,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:32:28,957 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-25 20:32:28,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:32:28,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733587781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:32:28,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:32:28,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [14] total 16 [2021-11-25 20:32:28,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862813487] [2021-11-25 20:32:28,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:32:28,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:32:28,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:32:28,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:32:28,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-11-25 20:32:28,961 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:32:28,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:32:28,966 INFO L93 Difference]: Finished difference Result 94 states and 110 transitions. [2021-11-25 20:32:28,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:32:28,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-25 20:32:28,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:32:28,968 INFO L225 Difference]: With dead ends: 94 [2021-11-25 20:32:28,968 INFO L226 Difference]: Without dead ends: 92 [2021-11-25 20:32:28,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-11-25 20:32:28,969 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:32:28,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 26 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2021-11-25 20:32:28,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-25 20:32:28,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 76. [2021-11-25 20:32:28,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 75 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:32:28,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2021-11-25 20:32:28,978 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 38 [2021-11-25 20:32:28,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:32:28,978 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2021-11-25 20:32:28,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:32:28,979 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2021-11-25 20:32:28,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-25 20:32:28,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:32:28,981 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:32:29,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 20:32:29,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-25 20:32:29,191 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:32:29,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:32:29,195 INFO L85 PathProgramCache]: Analyzing trace with hash -275586710, now seen corresponding path program 1 times [2021-11-25 20:32:29,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:32:29,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769181293] [2021-11-25 20:32:29,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:32:29,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:32:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:32:29,610 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-25 20:32:29,611 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:32:29,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769181293] [2021-11-25 20:32:29,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769181293] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:32:29,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163106047] [2021-11-25 20:32:29,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:32:29,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:32:29,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:32:29,612 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:32:29,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 20:32:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:32:29,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-25 20:32:29,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:32:29,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 198 [2021-11-25 20:32:29,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:29,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:32:29,953 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:32:29,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:32:29,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:32:30,058 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:32:30,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2021-11-25 20:32:30,161 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:32:30,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2021-11-25 20:32:30,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:32:30,342 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:32:30,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 27 [2021-11-25 20:32:30,448 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:32:30,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 29 [2021-11-25 20:32:30,585 INFO L354 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2021-11-25 20:32:30,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 44 [2021-11-25 20:32:30,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:32:30,672 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 20:32:30,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:32:30,787 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:32:30,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2021-11-25 20:32:31,134 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x1~0#1.base| Int) (|ULTIMATE.start_main_~x0~0#1.base| Int) (v_arrayElimArr_4 (Array Int Int)) (v_ArrVal_641 (Array Int Int)) (v_ArrVal_642 (Array Int Int))) (or (not (= (select v_arrayElimArr_4 |c_ULTIMATE.start_main_~x0~0#1.offset|) 0)) (= (select (select (let ((.cse0 (store (store (store |c_#memory_int| |ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_641) |ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_642) |ULTIMATE.start_main_~x0~0#1.base| v_arrayElimArr_4))) (store .cse0 |ULTIMATE.start_main_~x1~0#1.base| (store (select .cse0 |ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset| 0))) |c_ULTIMATE.start_main_~x2~0#1.base|) |c_ULTIMATE.start_main_~x2~0#1.offset|) 0))) is different from false [2021-11-25 20:32:31,220 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x1~0#1.base| Int) (|ULTIMATE.start_main_~x0~0#1.base| Int) (v_arrayElimArr_4 (Array Int Int)) (v_ArrVal_639 (Array Int Int)) (v_ArrVal_641 (Array Int Int)) (v_ArrVal_642 (Array Int Int))) (or (not (= (select v_arrayElimArr_4 |c_ULTIMATE.start_main_~x0~0#1.offset|) 0)) (= (select (select (let ((.cse0 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x3~0#1.base| v_ArrVal_639) |ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_641) |ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_642) |ULTIMATE.start_main_~x0~0#1.base| v_arrayElimArr_4))) (store .cse0 |ULTIMATE.start_main_~x1~0#1.base| (store (select .cse0 |ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset| 0))) |c_ULTIMATE.start_main_~x2~0#1.base|) |c_ULTIMATE.start_main_~x2~0#1.offset|) 0))) is different from false [2021-11-25 20:32:31,233 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:32:31,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 48 [2021-11-25 20:32:31,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19078 treesize of output 18930 [2021-11-25 20:32:32,167 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:32:32,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18868 treesize of output 18182 [2021-11-25 20:32:32,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20926 treesize of output 19618 [2021-11-25 20:32:34,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17058 treesize of output 16914 [2021-11-25 20:32:34,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16914 treesize of output 16842 [2021-11-25 20:32:36,886 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-25 20:32:36,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [986674219] [2021-11-25 20:32:36,889 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2021-11-25 20:32:36,889 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:32:36,890 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:32:36,890 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:32:36,890 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:32:36,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:36,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:36,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:36,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:36,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:36,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:36,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 20:32:36,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:37,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-25 20:32:37,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:32:37,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:32:37,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:37,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:37,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:37,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:37,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:37,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:38,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:38,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:38,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:38,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:38,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:38,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:39,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:39,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:39,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:39,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:39,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:39,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:40,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:40,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:40,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:40,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:40,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:40,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:40,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:40,379 INFO L354 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2021-11-25 20:32:40,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 20:32:40,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:40,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:40,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:40,617 INFO L354 Elim1Store]: treesize reduction 68, result has 42.4 percent of original size [2021-11-25 20:32:40,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 275 treesize of output 296 [2021-11-25 20:32:41,039 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:32:47,906 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2462#(and (<= |ULTIMATE.start_main_~x2~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x1~0#1.base|) (<= |ULTIMATE.start_main_~x1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x0~0#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= 0 |ULTIMATE.start_main_~x3~0#1.base|) (<= 0 |ULTIMATE.start_main_~x1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x3~0#1.offset|) (<= |ULTIMATE.start_main_~x3~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.base|) (<= 0 |ULTIMATE.start_main_~x0~0#1.base|) (<= |ULTIMATE.start_main_~x0~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_#t~malloc1#1.base_15| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_#t~malloc1#1.base_15|) 0) (<= 0 |v_ULTIMATE.start_main_#t~malloc1#1.base_15|))) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 20:32:47,906 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:32:47,906 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:32:47,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-11-25 20:32:47,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884240624] [2021-11-25 20:32:47,906 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-25 20:32:47,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:32:47,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:32:47,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:32:47,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=1101, Unknown=39, NotChecked=146, Total=1560 [2021-11-25 20:32:47,908 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:32:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:32:48,011 INFO L93 Difference]: Finished difference Result 111 states and 129 transitions. [2021-11-25 20:32:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:32:48,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-25 20:32:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:32:48,012 INFO L225 Difference]: With dead ends: 111 [2021-11-25 20:32:48,012 INFO L226 Difference]: Without dead ends: 111 [2021-11-25 20:32:48,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=287, Invalid=1164, Unknown=39, NotChecked=150, Total=1640 [2021-11-25 20:32:48,014 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 70 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:32:48,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 43 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:32:48,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-25 20:32:48,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2021-11-25 20:32:48,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.1904761904761905) internal successors, (125), 105 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:32:48,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 125 transitions. [2021-11-25 20:32:48,022 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 125 transitions. Word has length 39 [2021-11-25 20:32:48,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:32:48,023 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 125 transitions. [2021-11-25 20:32:48,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:32:48,023 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 125 transitions. [2021-11-25 20:32:48,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 20:32:48,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:32:48,026 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:32:48,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 20:32:48,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:32:48,235 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:32:48,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:32:48,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1086451051, now seen corresponding path program 1 times [2021-11-25 20:32:48,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:32:48,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348402590] [2021-11-25 20:32:48,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:32:48,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:32:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:32:48,427 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 33 proven. 16 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-25 20:32:48,427 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:32:48,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348402590] [2021-11-25 20:32:48,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348402590] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:32:48,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336541356] [2021-11-25 20:32:48,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:32:48,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:32:48,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:32:48,429 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:32:48,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 20:32:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:32:48,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-25 20:32:48,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:32:48,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:48,945 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-11-25 20:32:48,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-11-25 20:32:49,046 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 20:32:49,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 34 [2021-11-25 20:32:49,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:32:49,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-11-25 20:32:49,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-11-25 20:32:49,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-11-25 20:32:49,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:32:49,363 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 10 proven. 27 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-25 20:32:49,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:32:49,562 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_748 (Array Int Int)) (v_ArrVal_749 (Array Int Int)) (|ULTIMATE.start_main_~x2~0#1.base| Int)) (let ((.cse0 (store (store |c_#memory_int| |ULTIMATE.start_main_~x2~0#1.base| v_ArrVal_748) |c_ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_749))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~x1~0#1.base|))) (or (= (select (select (store .cse0 |c_ULTIMATE.start_main_~x1~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~x1~0#1.offset| 0)) |ULTIMATE.start_main_~x2~0#1.base|) |c_ULTIMATE.start_main_~x2~0#1.offset|) 0) (= (select .cse1 |c_ULTIMATE.start_main_~x1~0#1.offset|) 0))))) is different from false [2021-11-25 20:32:49,604 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_748 (Array Int Int)) (v_ArrVal_749 (Array Int Int)) (|ULTIMATE.start_main_~x2~0#1.base| Int)) (let ((.cse1 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x1~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset| 0)) |ULTIMATE.start_main_~x2~0#1.base| v_ArrVal_748) |c_ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_749))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~x1~0#1.base|))) (or (= (select .cse0 |c_ULTIMATE.start_main_~x1~0#1.offset|) 0) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~x1~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~x1~0#1.offset| 0)) |ULTIMATE.start_main_~x2~0#1.base|) |c_ULTIMATE.start_main_~x2~0#1.offset|) 0))))) is different from false [2021-11-25 20:32:49,624 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_748 (Array Int Int)) (v_ArrVal_749 (Array Int Int)) (|ULTIMATE.start_main_~x2~0#1.base| Int)) (let ((.cse1 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x1~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset| 0)) |ULTIMATE.start_main_~x2~0#1.base| v_ArrVal_748) |c_ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_749))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~x1~0#1.base|))) (or (= (select .cse0 |c_ULTIMATE.start_main_~x1~0#1.offset|) 0) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~x1~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~x1~0#1.offset| 0)) |ULTIMATE.start_main_~x2~0#1.base|) |c_ULTIMATE.start_main_~x2~0#1.offset|) 0))))) (= |c_ULTIMATE.start_main_#t~mem6#1| 0)) is different from false [2021-11-25 20:32:49,804 INFO L354 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2021-11-25 20:32:49,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 77 [2021-11-25 20:32:49,822 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:32:49,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 927 treesize of output 911 [2021-11-25 20:32:49,851 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:32:49,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 939 treesize of output 903 [2021-11-25 20:32:49,924 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:32:49,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 903 treesize of output 863 [2021-11-25 20:32:50,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 6 treesize of output 4 [2021-11-25 20:32:50,174 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:32:50,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2021-11-25 20:32:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 26 trivial. 5 not checked. [2021-11-25 20:32:50,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336541356] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:32:50,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1221211304] [2021-11-25 20:32:50,707 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2021-11-25 20:32:50,707 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:32:50,708 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:32:50,708 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:32:50,708 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:32:50,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 20:32:50,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:50,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-25 20:32:50,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:32:50,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:50,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:32:51,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:51,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:51,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:51,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:51,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:51,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:52,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:52,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:52,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:52,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:52,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:52,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:53,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:53,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:53,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:53,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:53,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:53,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:54,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:54,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:54,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:54,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:54,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:54,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:54,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:55,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:55,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:55,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:55,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:55,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:56,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:56,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:56,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:56,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:32:56,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2021-11-25 20:32:56,657 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:56,676 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:32:56,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 25 [2021-11-25 20:32:56,726 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:56,740 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-11-25 20:32:56,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-11-25 20:32:56,788 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:56,789 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:56,814 INFO L354 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2021-11-25 20:32:56,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 39 [2021-11-25 20:32:56,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:56,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:56,896 INFO L354 Elim1Store]: treesize reduction 28, result has 30.0 percent of original size [2021-11-25 20:32:56,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2021-11-25 20:32:56,985 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,001 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:32:57,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 25 [2021-11-25 20:32:57,072 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,089 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-11-25 20:32:57,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-11-25 20:32:57,144 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,145 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,171 INFO L354 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2021-11-25 20:32:57,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 40 [2021-11-25 20:32:57,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:57,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,272 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:32:57,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2021-11-25 20:32:57,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:57,350 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,362 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:32:57,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 25 [2021-11-25 20:32:57,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,425 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-11-25 20:32:57,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-11-25 20:32:57,463 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,464 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,488 INFO L354 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2021-11-25 20:32:57,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 39 [2021-11-25 20:32:57,561 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,562 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,578 INFO L354 Elim1Store]: treesize reduction 28, result has 30.0 percent of original size [2021-11-25 20:32:57,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2021-11-25 20:32:57,632 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,645 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:32:57,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 25 [2021-11-25 20:32:57,696 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,711 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-11-25 20:32:57,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-11-25 20:32:57,757 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,758 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,785 INFO L354 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2021-11-25 20:32:57,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 40 [2021-11-25 20:32:57,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:57,847 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,859 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:32:57,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2021-11-25 20:32:57,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:57,955 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:57,965 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:32:57,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 25 [2021-11-25 20:32:58,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:58,061 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-11-25 20:32:58,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-11-25 20:32:58,097 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:58,098 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:58,117 INFO L354 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2021-11-25 20:32:58,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 39 [2021-11-25 20:32:58,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:58,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:58,204 INFO L354 Elim1Store]: treesize reduction 28, result has 30.0 percent of original size [2021-11-25 20:32:58,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2021-11-25 20:32:58,251 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:58,261 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:32:58,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 25 [2021-11-25 20:32:58,306 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:58,318 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-11-25 20:32:58,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-11-25 20:32:58,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:58,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:58,438 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:58,438 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:32:58,459 INFO L354 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2021-11-25 20:32:58,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 39 [2021-11-25 20:32:58,558 INFO L354 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2021-11-25 20:32:58,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 15 treesize of output 21 [2021-11-25 20:32:58,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:32:58,685 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:33:01,865 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3021#(and (<= |ULTIMATE.start_main_~x2~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x1~0#1.base|) (<= |ULTIMATE.start_main_~x1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x0~0#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= 0 |ULTIMATE.start_main_~x3~0#1.base|) (<= 0 |ULTIMATE.start_main_~x1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x3~0#1.offset|) (<= |ULTIMATE.start_main_~x3~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.base|) (<= 0 |ULTIMATE.start_main_~x0~0#1.base|) (<= |ULTIMATE.start_main_~x0~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0) (exists ((|v_ULTIMATE.start_main_#t~malloc1#1.base_17| Int)) (and (<= 0 |v_ULTIMATE.start_main_#t~malloc1#1.base_17|) (= (select |#valid| |v_ULTIMATE.start_main_#t~malloc1#1.base_17|) 0))))' at error location [2021-11-25 20:33:01,866 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:33:01,866 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:33:01,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 12] total 28 [2021-11-25 20:33:01,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433056974] [2021-11-25 20:33:01,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:33:01,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-25 20:33:01,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:33:01,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-25 20:33:01,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1323, Unknown=21, NotChecked=234, Total=1806 [2021-11-25 20:33:01,868 INFO L87 Difference]: Start difference. First operand 106 states and 125 transitions. Second operand has 29 states, 29 states have (on average 3.6551724137931036) internal successors, (106), 28 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:02,498 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~x0~0#1.base|))) (and (forall ((v_ArrVal_748 (Array Int Int)) (v_ArrVal_749 (Array Int Int)) (|ULTIMATE.start_main_~x2~0#1.base| Int)) (let ((.cse0 (store (store |c_#memory_int| |ULTIMATE.start_main_~x2~0#1.base| v_ArrVal_748) |c_ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_749))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~x1~0#1.base|))) (or (= (select (select (store .cse0 |c_ULTIMATE.start_main_~x1~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~x1~0#1.offset| 0)) |ULTIMATE.start_main_~x2~0#1.base|) |c_ULTIMATE.start_main_~x2~0#1.offset|) 0) (= (select .cse1 |c_ULTIMATE.start_main_~x1~0#1.offset|) 0))))) (= |c_ULTIMATE.start_main_~x1~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~x1~0#1.base| |c_ULTIMATE.start_main_~x0~0#1.base|)) (not (= |c_ULTIMATE.start_main_~x2~0#1.base| |c_ULTIMATE.start_main_~x0~0#1.base|)) (= |c_ULTIMATE.start_main_~x0~0#1.offset| 0) (= (select .cse2 0) 0) (= |c_ULTIMATE.start_main_~x2~0#1.offset| 0) (= (select .cse2 |c_ULTIMATE.start_main_~x0~0#1.offset|) 0) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset|) 0) (= 0 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~x2~0#1.base|) 0)))) is different from false [2021-11-25 20:33:02,502 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~x0~0#1.base|))) (and (forall ((v_ArrVal_748 (Array Int Int)) (v_ArrVal_749 (Array Int Int)) (|ULTIMATE.start_main_~x2~0#1.base| Int)) (let ((.cse0 (store (store |c_#memory_int| |ULTIMATE.start_main_~x2~0#1.base| v_ArrVal_748) |c_ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_749))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~x1~0#1.base|))) (or (= (select (select (store .cse0 |c_ULTIMATE.start_main_~x1~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~x1~0#1.offset| 0)) |ULTIMATE.start_main_~x2~0#1.base|) |c_ULTIMATE.start_main_~x2~0#1.offset|) 0) (= (select .cse1 |c_ULTIMATE.start_main_~x1~0#1.offset|) 0))))) (= |c_ULTIMATE.start_main_~x1~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~x1~0#1.base| |c_ULTIMATE.start_main_~x0~0#1.base|)) (not (= |c_ULTIMATE.start_main_~x2~0#1.base| |c_ULTIMATE.start_main_~x0~0#1.base|)) (= (select .cse2 0) 0) (= |c_ULTIMATE.start_main_~x2~0#1.offset| 0) (= (select .cse2 |c_ULTIMATE.start_main_~x0~0#1.offset|) 0) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset|) 0) (= |c_ULTIMATE.start_main_#t~mem7#1| 0))) is different from false [2021-11-25 20:33:02,506 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~x0~0#1.base|))) (and (forall ((v_ArrVal_748 (Array Int Int)) (v_ArrVal_749 (Array Int Int)) (|ULTIMATE.start_main_~x2~0#1.base| Int)) (let ((.cse0 (store (store |c_#memory_int| |ULTIMATE.start_main_~x2~0#1.base| v_ArrVal_748) |c_ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_749))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~x1~0#1.base|))) (or (= (select (select (store .cse0 |c_ULTIMATE.start_main_~x1~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~x1~0#1.offset| 0)) |ULTIMATE.start_main_~x2~0#1.base|) |c_ULTIMATE.start_main_~x2~0#1.offset|) 0) (= (select .cse1 |c_ULTIMATE.start_main_~x1~0#1.offset|) 0))))) (= |c_ULTIMATE.start_main_~x1~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~x1~0#1.base| |c_ULTIMATE.start_main_~x0~0#1.base|)) (not (= |c_ULTIMATE.start_main_~x2~0#1.base| |c_ULTIMATE.start_main_~x0~0#1.base|)) (= (select .cse2 0) 0) (= |c_ULTIMATE.start_main_~x2~0#1.offset| 0) (= (select .cse2 |c_ULTIMATE.start_main_~x0~0#1.offset|) 0) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset|) 0))) is different from false [2021-11-25 20:33:02,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:02,663 INFO L93 Difference]: Finished difference Result 126 states and 147 transitions. [2021-11-25 20:33:02,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-25 20:33:02,664 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.6551724137931036) internal successors, (106), 28 states have internal predecessors, (106), 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 50 [2021-11-25 20:33:02,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:02,665 INFO L225 Difference]: With dead ends: 126 [2021-11-25 20:33:02,665 INFO L226 Difference]: Without dead ends: 126 [2021-11-25 20:33:02,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 105 SyntacticMatches, 18 SemanticMatches, 61 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1542 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=549, Invalid=2641, Unknown=26, NotChecked=690, Total=3906 [2021-11-25 20:33:02,667 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 85 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 162 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:02,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 127 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 301 Invalid, 0 Unknown, 162 Unchecked, 0.2s Time] [2021-11-25 20:33:02,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-25 20:33:02,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2021-11-25 20:33:02,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 1.1818181818181819) internal successors, (143), 121 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:02,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2021-11-25 20:33:02,673 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 50 [2021-11-25 20:33:02,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:02,674 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2021-11-25 20:33:02,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.6551724137931036) internal successors, (106), 28 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:02,674 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2021-11-25 20:33:02,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-25 20:33:02,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:02,676 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:02,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:02,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-25 20:33:02,895 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 27 more)] === [2021-11-25 20:33:02,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:02,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1517010955, now seen corresponding path program 2 times [2021-11-25 20:33:02,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:33:02,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182562926] [2021-11-25 20:33:02,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:02,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:33:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:02,978 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 68 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-25 20:33:02,978 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:33:02,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182562926] [2021-11-25 20:33:02,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182562926] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:33:02,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871079655] [2021-11-25 20:33:02,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:33:02,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:02,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:33:02,980 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:33:02,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 20:33:03,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-25 20:33:03,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:33:03,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-25 20:33:03,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:03,953 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-11-25 20:33:03,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:33:03,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871079655] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:03,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:33:03,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2021-11-25 20:33:03,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880954252] [2021-11-25 20:33:03,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:03,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:33:03,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:33:03,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:33:03,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:33:03,955 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:03,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:03,962 INFO L93 Difference]: Finished difference Result 121 states and 142 transitions. [2021-11-25 20:33:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:33:03,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-25 20:33:03,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:03,963 INFO L225 Difference]: With dead ends: 121 [2021-11-25 20:33:03,963 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 20:33:03,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:33:03,964 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:03,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2021-11-25 20:33:03,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 20:33:03,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 20:33:03,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:03,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 20:33:03,966 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-11-25 20:33:03,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:03,966 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 20:33:03,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:03,966 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 20:33:03,967 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 20:33:03,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION (30 of 31 remaining) [2021-11-25 20:33:03,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION (29 of 31 remaining) [2021-11-25 20:33:03,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATION (28 of 31 remaining) [2021-11-25 20:33:03,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATION (27 of 31 remaining) [2021-11-25 20:33:03,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATION (26 of 31 remaining) [2021-11-25 20:33:03,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATION (25 of 31 remaining) [2021-11-25 20:33:03,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATION (24 of 31 remaining) [2021-11-25 20:33:03,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATION (23 of 31 remaining) [2021-11-25 20:33:03,971 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATION (22 of 31 remaining) [2021-11-25 20:33:03,971 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATION (21 of 31 remaining) [2021-11-25 20:33:03,971 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATION (20 of 31 remaining) [2021-11-25 20:33:03,971 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATION (19 of 31 remaining) [2021-11-25 20:33:03,971 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATION (18 of 31 remaining) [2021-11-25 20:33:03,971 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATION (17 of 31 remaining) [2021-11-25 20:33:03,972 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATION (16 of 31 remaining) [2021-11-25 20:33:03,972 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATION (15 of 31 remaining) [2021-11-25 20:33:03,972 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATION (14 of 31 remaining) [2021-11-25 20:33:03,972 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATION (13 of 31 remaining) [2021-11-25 20:33:03,972 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18REQUIRES_VIOLATION (12 of 31 remaining) [2021-11-25 20:33:03,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATION (11 of 31 remaining) [2021-11-25 20:33:03,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20REQUIRES_VIOLATION (10 of 31 remaining) [2021-11-25 20:33:03,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21REQUIRES_VIOLATION (9 of 31 remaining) [2021-11-25 20:33:03,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22REQUIRES_VIOLATION (8 of 31 remaining) [2021-11-25 20:33:03,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23REQUIRES_VIOLATION (7 of 31 remaining) [2021-11-25 20:33:03,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24REQUIRES_VIOLATION (6 of 31 remaining) [2021-11-25 20:33:03,974 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25REQUIRES_VIOLATION (5 of 31 remaining) [2021-11-25 20:33:03,974 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26REQUIRES_VIOLATION (4 of 31 remaining) [2021-11-25 20:33:03,974 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27REQUIRES_VIOLATION (3 of 31 remaining) [2021-11-25 20:33:03,974 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28REQUIRES_VIOLATION (2 of 31 remaining) [2021-11-25 20:33:03,974 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29REQUIRES_VIOLATION (1 of 31 remaining) [2021-11-25 20:33:03,975 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (0 of 31 remaining) [2021-11-25 20:33:04,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:04,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-25 20:33:04,190 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:04,192 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 20:33:04,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:33:04 BoogieIcfgContainer [2021-11-25 20:33:04,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 20:33:04,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 20:33:04,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 20:33:04,197 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 20:33:04,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:30:52" (3/4) ... [2021-11-25 20:33:04,200 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 20:33:04,208 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-25 20:33:04,209 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-25 20:33:04,209 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 20:33:04,209 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 20:33:04,246 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 20:33:04,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 20:33:04,250 INFO L158 Benchmark]: Toolchain (without parser) took 133006.13ms. Allocated memory was 98.6MB in the beginning and 434.1MB in the end (delta: 335.5MB). Free memory was 55.4MB in the beginning and 375.1MB in the end (delta: -319.7MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2021-11-25 20:33:04,250 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory was 71.4MB in the beginning and 71.3MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 20:33:04,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.96ms. Allocated memory is still 98.6MB. Free memory was 76.4MB in the beginning and 73.9MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 20:33:04,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.56ms. Allocated memory is still 98.6MB. Free memory was 73.9MB in the beginning and 72.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 20:33:04,251 INFO L158 Benchmark]: Boogie Preprocessor took 49.80ms. Allocated memory is still 98.6MB. Free memory was 72.4MB in the beginning and 71.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 20:33:04,251 INFO L158 Benchmark]: RCFGBuilder took 659.92ms. Allocated memory is still 98.6MB. Free memory was 71.0MB in the beginning and 57.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 20:33:04,252 INFO L158 Benchmark]: TraceAbstraction took 131863.55ms. Allocated memory was 98.6MB in the beginning and 434.1MB in the end (delta: 335.5MB). Free memory was 57.2MB in the beginning and 378.3MB in the end (delta: -321.1MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2021-11-25 20:33:04,252 INFO L158 Benchmark]: Witness Printer took 52.32ms. Allocated memory is still 434.1MB. Free memory was 378.3MB in the beginning and 375.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 20:33:04,254 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory was 71.4MB in the beginning and 71.3MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.96ms. Allocated memory is still 98.6MB. Free memory was 76.4MB in the beginning and 73.9MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.56ms. Allocated memory is still 98.6MB. Free memory was 73.9MB in the beginning and 72.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.80ms. Allocated memory is still 98.6MB. Free memory was 72.4MB in the beginning and 71.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 659.92ms. Allocated memory is still 98.6MB. Free memory was 71.0MB in the beginning and 57.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 131863.55ms. Allocated memory was 98.6MB in the beginning and 434.1MB in the end (delta: 335.5MB). Free memory was 57.2MB in the beginning and 378.3MB in the end (delta: -321.1MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 52.32ms. Allocated memory is still 434.1MB. Free memory was 378.3MB in the beginning and 375.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 12]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 12]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 21]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 21]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 23]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 23]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 24]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 24]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 25]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 25]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 27]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 27]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 54 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 131.8s, OverallIterations: 17, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 728 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 728 mSDsluCounter, 722 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 354 IncrementalHoareTripleChecker+Unchecked, 512 mSDsCounter, 356 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1342 IncrementalHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 356 mSolverCounterUnsat, 210 mSDtfsCounter, 1342 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 792 GetRequests, 474 SyntacticMatches, 32 SemanticMatches, 286 ConstructedPredicates, 19 IntricatePredicates, 0 DeprecatedPredicates, 4290 ImplicationChecksByTransitivity, 78.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=16, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 132 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 42.9s InterpolantComputationTime, 560 NumberOfCodeBlocks, 480 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 675 ConstructedInterpolants, 139 QuantifiedInterpolants, 12731 SizeOfPredicates, 70 NumberOfNonLiveVariables, 1401 ConjunctsInSsa, 224 ConjunctsInUnsatCore, 29 InterpolantComputations, 11 PerfectInterpolantSequences, 463/646 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 3.6s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 28, DAG_INTERPRETER_EARLY_EXITS: 4, TOOLS_POST_APPLICATIONS: 69, TOOLS_POST_TIME: 3.1s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 51, TOOLS_QUANTIFIERELIM_TIME: 3.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 110, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 5, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 28, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME: 1.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 609, DAG_COMPRESSION_RETAINED_NODES: 110, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 31 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-25 20:33:04,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a862fbc5-158a-4d42-8774-b3c1f293ba87/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE