./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/indp3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/indp3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e95db6aea8df845f112e7d303c04ce64867bd2e800c9279283322a7440e1498c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:32:46,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:32:46,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:32:46,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:32:46,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:32:46,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:32:46,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:32:46,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:32:46,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:32:46,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:32:46,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:32:46,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:32:46,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:32:46,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:32:46,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:32:46,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:32:46,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:32:46,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:32:46,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:32:46,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:32:46,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:32:46,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:32:46,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:32:46,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:32:46,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:32:46,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:32:46,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:32:46,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:32:46,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:32:46,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:32:46,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:32:46,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:32:46,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:32:46,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:32:46,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:32:46,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:32:46,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:32:46,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:32:46,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:32:46,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:32:46,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:32:46,864 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:32:46,901 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:32:46,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:32:46,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:32:46,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:32:46,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:32:46,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:32:46,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:32:46,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:32:46,909 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:32:46,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:32:46,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:32:46,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:32:46,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:32:46,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:32:46,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:32:46,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:32:46,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:32:46,912 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:32:46,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:32:46,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:32:46,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:32:46,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:32:46,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:32:46,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:32:46,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:32:46,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:32:46,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:32:46,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:32:46,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:32:46,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:32:46,916 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:32:46,916 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:32:46,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:32:46,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e95db6aea8df845f112e7d303c04ce64867bd2e800c9279283322a7440e1498c [2022-11-18 19:32:47,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:32:47,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:32:47,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:32:47,269 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:32:47,270 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:32:47,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/array-fpi/indp3.c [2022-11-18 19:32:47,344 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/data/ebc509797/8f5162acf1ca4714b46617275b391763/FLAG913ca2dc1 [2022-11-18 19:32:47,812 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:32:47,813 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/sv-benchmarks/c/array-fpi/indp3.c [2022-11-18 19:32:47,819 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/data/ebc509797/8f5162acf1ca4714b46617275b391763/FLAG913ca2dc1 [2022-11-18 19:32:48,200 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/data/ebc509797/8f5162acf1ca4714b46617275b391763 [2022-11-18 19:32:48,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:32:48,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:32:48,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:32:48,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:32:48,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:32:48,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:48" (1/1) ... [2022-11-18 19:32:48,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62db38ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48, skipping insertion in model container [2022-11-18 19:32:48,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:48" (1/1) ... [2022-11-18 19:32:48,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:32:48,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:32:48,457 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/sv-benchmarks/c/array-fpi/indp3.c[588,601] [2022-11-18 19:32:48,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:32:48,486 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:32:48,500 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/sv-benchmarks/c/array-fpi/indp3.c[588,601] [2022-11-18 19:32:48,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:32:48,522 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:32:48,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48 WrapperNode [2022-11-18 19:32:48,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:32:48,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:32:48,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:32:48,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:32:48,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48" (1/1) ... [2022-11-18 19:32:48,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48" (1/1) ... [2022-11-18 19:32:48,560 INFO L138 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2022-11-18 19:32:48,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:32:48,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:32:48,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:32:48,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:32:48,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48" (1/1) ... [2022-11-18 19:32:48,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48" (1/1) ... [2022-11-18 19:32:48,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48" (1/1) ... [2022-11-18 19:32:48,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48" (1/1) ... [2022-11-18 19:32:48,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48" (1/1) ... [2022-11-18 19:32:48,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48" (1/1) ... [2022-11-18 19:32:48,591 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48" (1/1) ... [2022-11-18 19:32:48,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48" (1/1) ... [2022-11-18 19:32:48,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:32:48,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:32:48,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:32:48,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:32:48,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48" (1/1) ... [2022-11-18 19:32:48,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:32:48,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:48,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:32:48,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:32:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:32:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:32:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:32:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:32:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:32:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:32:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:32:48,750 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:32:48,752 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:32:49,020 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:32:49,026 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:32:49,026 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-18 19:32:49,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:49 BoogieIcfgContainer [2022-11-18 19:32:49,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:32:49,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:32:49,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:32:49,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:32:49,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:32:48" (1/3) ... [2022-11-18 19:32:49,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23540298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:32:49, skipping insertion in model container [2022-11-18 19:32:49,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:48" (2/3) ... [2022-11-18 19:32:49,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23540298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:32:49, skipping insertion in model container [2022-11-18 19:32:49,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:49" (3/3) ... [2022-11-18 19:32:49,053 INFO L112 eAbstractionObserver]: Analyzing ICFG indp3.c [2022-11-18 19:32:49,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:32:49,088 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:32:49,198 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:32:49,205 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@613bf3ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:32:49,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:32:49,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:49,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:32:49,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:49,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:49,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:32:49,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:49,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1389277550, now seen corresponding path program 1 times [2022-11-18 19:32:49,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:49,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384009252] [2022-11-18 19:32:49,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:49,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:49,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:49,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384009252] [2022-11-18 19:32:49,450 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 19:32:49,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445268176] [2022-11-18 19:32:49,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:49,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:49,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:49,455 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:32:49,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:32:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:49,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 19:32:49,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:32:49,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:32:49,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:32:49,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445268176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:49,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:32:49,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:32:49,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272394192] [2022-11-18 19:32:49,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:49,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:32:49,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:49,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:32:49,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:32:49,662 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:49,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:49,687 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2022-11-18 19:32:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:32:49,689 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 19:32:49,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:49,708 INFO L225 Difference]: With dead ends: 50 [2022-11-18 19:32:49,713 INFO L226 Difference]: Without dead ends: 23 [2022-11-18 19:32:49,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:32:49,722 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:49,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:32:49,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-18 19:32:49,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-18 19:32:49,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:49,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-18 19:32:49,761 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2022-11-18 19:32:49,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:49,761 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-18 19:32:49,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:49,763 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-18 19:32:49,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:32:49,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:49,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:49,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:32:49,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:49,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:32:49,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:49,972 INFO L85 PathProgramCache]: Analyzing trace with hash 796930410, now seen corresponding path program 1 times [2022-11-18 19:32:49,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:49,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818367043] [2022-11-18 19:32:49,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:49,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:50,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:50,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818367043] [2022-11-18 19:32:50,017 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 19:32:50,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573499090] [2022-11-18 19:32:50,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:50,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:50,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:50,020 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:32:50,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:32:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:50,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:32:50,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:32:50,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:32:50,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:32:50,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573499090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:50,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:32:50,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:32:50,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536449486] [2022-11-18 19:32:50,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:50,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:32:50,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:50,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:32:50,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:32:50,206 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:50,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:50,283 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2022-11-18 19:32:50,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:32:50,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 19:32:50,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:50,285 INFO L225 Difference]: With dead ends: 53 [2022-11-18 19:32:50,285 INFO L226 Difference]: Without dead ends: 37 [2022-11-18 19:32:50,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:32:50,286 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 33 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:50,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 17 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:32:50,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-18 19:32:50,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2022-11-18 19:32:50,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:50,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-11-18 19:32:50,294 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2022-11-18 19:32:50,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:50,294 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-11-18 19:32:50,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:50,295 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-18 19:32:50,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 19:32:50,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:50,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:50,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:32:50,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:50,500 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:32:50,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:50,501 INFO L85 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2022-11-18 19:32:50,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:50,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202859420] [2022-11-18 19:32:50,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:50,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:50,524 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:32:50,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1689198240] [2022-11-18 19:32:50,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:50,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:50,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:50,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:32:50,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:32:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:50,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-18 19:32:50,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:32:50,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:32:50,913 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 11 [2022-11-18 19:32:50,960 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 11 [2022-11-18 19:32:51,022 INFO L350 Elim1Store]: Elim1 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 25 treesize of output 13 [2022-11-18 19:32:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:32:51,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:32:51,677 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 55 [2022-11-18 19:32:51,689 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:32:51,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 104 [2022-11-18 19:32:51,751 INFO L321 Elim1Store]: treesize reduction 23, result has 39.5 percent of original size [2022-11-18 19:32:51,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 50 [2022-11-18 19:32:51,790 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:32:51,790 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 28 [2022-11-18 19:32:51,806 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:32:51,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:51,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202859420] [2022-11-18 19:32:51,807 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:32:51,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689198240] [2022-11-18 19:32:51,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689198240] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:32:51,808 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:32:51,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2022-11-18 19:32:51,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450157013] [2022-11-18 19:32:51,808 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:32:51,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:32:51,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:51,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:32:51,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:32:51,810 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:52,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:52,444 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2022-11-18 19:32:52,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 19:32:52,445 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-18 19:32:52,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:52,446 INFO L225 Difference]: With dead ends: 81 [2022-11-18 19:32:52,446 INFO L226 Difference]: Without dead ends: 79 [2022-11-18 19:32:52,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2022-11-18 19:32:52,448 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 142 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:52,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 87 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:32:52,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-18 19:32:52,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 52. [2022-11-18 19:32:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 51 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:52,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2022-11-18 19:32:52,474 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 24 [2022-11-18 19:32:52,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:52,475 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2022-11-18 19:32:52,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:52,475 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2022-11-18 19:32:52,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 19:32:52,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:52,476 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:52,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:32:52,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:52,682 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:32:52,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:52,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1411307230, now seen corresponding path program 2 times [2022-11-18 19:32:52,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:52,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612839778] [2022-11-18 19:32:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:52,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:52,705 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:32:52,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1014017219] [2022-11-18 19:32:52,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:32:52,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:52,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:52,711 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:32:52,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:32:52,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:32:52,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:32:52,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:32:52,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:32:52,877 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 19:32:52,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:32:52,954 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 19:32:52,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:52,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612839778] [2022-11-18 19:32:52,955 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:32:52,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014017219] [2022-11-18 19:32:52,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014017219] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:32:52,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:32:52,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-18 19:32:52,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486733183] [2022-11-18 19:32:52,956 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:32:52,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:32:52,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:52,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:32:52,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:32:52,957 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:53,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:53,360 INFO L93 Difference]: Finished difference Result 182 states and 217 transitions. [2022-11-18 19:32:53,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:32:53,361 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-18 19:32:53,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:53,362 INFO L225 Difference]: With dead ends: 182 [2022-11-18 19:32:53,362 INFO L226 Difference]: Without dead ends: 124 [2022-11-18 19:32:53,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:32:53,364 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 193 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:53,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 72 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:32:53,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-18 19:32:53,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 92. [2022-11-18 19:32:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.164835164835165) internal successors, (106), 91 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) [2022-11-18 19:32:53,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2022-11-18 19:32:53,383 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 28 [2022-11-18 19:32:53,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:53,384 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2022-11-18 19:32:53,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:53,384 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2022-11-18 19:32:53,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 19:32:53,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:53,385 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:53,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:32:53,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:53,590 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:32:53,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:53,591 INFO L85 PathProgramCache]: Analyzing trace with hash -2120316834, now seen corresponding path program 3 times [2022-11-18 19:32:53,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:53,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622794678] [2022-11-18 19:32:53,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:53,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:53,614 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:32:53,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1593317200] [2022-11-18 19:32:53,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:32:53,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:53,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:53,616 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:32:53,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:32:53,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 19:32:53,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:32:53,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-18 19:32:53,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:32:53,820 INFO L350 Elim1Store]: Elim1 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 64 treesize of output 59 [2022-11-18 19:32:53,825 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 22 treesize of output 22 [2022-11-18 19:32:53,840 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 21 treesize of output 21 [2022-11-18 19:33:06,975 WARN L233 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:33:30,027 WARN L233 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:33:30,132 INFO L321 Elim1Store]: treesize reduction 43, result has 23.2 percent of original size [2022-11-18 19:33:30,133 INFO L350 Elim1Store]: Elim1 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 4 case distinctions, treesize of input 130 treesize of output 128 [2022-11-18 19:33:57,289 INFO L350 Elim1Store]: Elim1 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 209 treesize of output 196 [2022-11-18 19:33:57,333 INFO L321 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2022-11-18 19:33:57,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 195 treesize of output 250 [2022-11-18 19:33:57,680 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:34:34,775 WARN L233 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:34:53,391 INFO L350 Elim1Store]: Elim1 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 145 treesize of output 130 [2022-11-18 19:34:53,418 INFO L321 Elim1Store]: treesize reduction 114, result has 0.9 percent of original size [2022-11-18 19:34:53,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 161 treesize of output 216 [2022-11-18 19:34:53,480 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:35:22,976 INFO L350 Elim1Store]: Elim1 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 52 treesize of output 40 [2022-11-18 19:35:23,091 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 19:35:23,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:25,025 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 55 [2022-11-18 19:35:25,185 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:35:25,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 104 [2022-11-18 19:35:25,600 INFO L321 Elim1Store]: treesize reduction 22, result has 56.0 percent of original size [2022-11-18 19:35:25,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 62 [2022-11-18 19:35:25,759 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:35:25,760 INFO L350 Elim1Store]: Elim1 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 52 treesize of output 41 [2022-11-18 19:35:26,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 19:35:26,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:26,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622794678] [2022-11-18 19:35:26,413 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:35:26,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593317200] [2022-11-18 19:35:26,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593317200] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:35:26,413 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:35:26,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 32 [2022-11-18 19:35:26,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671014707] [2022-11-18 19:35:26,414 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:26,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-18 19:35:26,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-18 19:35:26,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=757, Unknown=53, NotChecked=0, Total=992 [2022-11-18 19:35:26,416 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand has 32 states, 32 states have (on average 1.53125) internal successors, (49), 32 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) [2022-11-18 19:35:39,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:39,234 INFO L93 Difference]: Finished difference Result 103 states and 116 transitions. [2022-11-18 19:35:39,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 19:35:39,235 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.53125) internal successors, (49), 32 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) Word has length 28 [2022-11-18 19:35:39,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:39,236 INFO L225 Difference]: With dead ends: 103 [2022-11-18 19:35:39,236 INFO L226 Difference]: Without dead ends: 90 [2022-11-18 19:35:39,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 161.4s TimeCoverageRelationStatistics Valid=212, Invalid=924, Unknown=54, NotChecked=0, Total=1190 [2022-11-18 19:35:39,237 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 166 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:39,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 114 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 104 Invalid, 0 Unknown, 166 Unchecked, 0.3s Time] [2022-11-18 19:35:39,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-18 19:35:39,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2022-11-18 19:35:39,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.160919540229885) internal successors, (101), 87 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:39,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 101 transitions. [2022-11-18 19:35:39,258 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 101 transitions. Word has length 28 [2022-11-18 19:35:39,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:39,259 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 101 transitions. [2022-11-18 19:35:39,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.53125) internal successors, (49), 32 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) [2022-11-18 19:35:39,259 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 101 transitions. [2022-11-18 19:35:39,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 19:35:39,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:39,261 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:39,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 19:35:39,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:39,466 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:35:39,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:39,467 INFO L85 PathProgramCache]: Analyzing trace with hash -220185444, now seen corresponding path program 4 times [2022-11-18 19:35:39,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:39,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596634085] [2022-11-18 19:35:39,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:39,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:39,492 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:35:39,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024904931] [2022-11-18 19:35:39,495 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:35:39,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:39,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:39,496 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:39,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 19:35:39,589 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:35:39,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:35:39,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:35:39,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:39,734 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 19:35:39,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:39,832 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 19:35:39,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:39,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596634085] [2022-11-18 19:35:39,833 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:35:39,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024904931] [2022-11-18 19:35:39,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024904931] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:35:39,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:35:39,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-18 19:35:39,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274279134] [2022-11-18 19:35:39,834 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:39,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:35:39,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:39,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:35:39,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:35:39,836 INFO L87 Difference]: Start difference. First operand 88 states and 101 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:40,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:40,169 INFO L93 Difference]: Finished difference Result 104 states and 116 transitions. [2022-11-18 19:35:40,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:35:40,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-18 19:35:40,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:40,170 INFO L225 Difference]: With dead ends: 104 [2022-11-18 19:35:40,170 INFO L226 Difference]: Without dead ends: 95 [2022-11-18 19:35:40,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:35:40,171 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 108 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:40,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 35 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:35:40,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-11-18 19:35:40,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 83. [2022-11-18 19:35:40,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.1219512195121952) internal successors, (92), 82 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2022-11-18 19:35:40,193 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 30 [2022-11-18 19:35:40,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:40,194 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2022-11-18 19:35:40,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2022-11-18 19:35:40,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-18 19:35:40,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:40,195 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:40,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:40,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:40,402 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:35:40,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:40,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1205583320, now seen corresponding path program 5 times [2022-11-18 19:35:40,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:40,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976135361] [2022-11-18 19:35:40,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:40,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:40,418 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:35:40,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [518808002] [2022-11-18 19:35:40,419 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:35:40,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:40,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:40,420 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:40,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 19:35:45,532 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-11-18 19:35:45,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:35:45,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:35:45,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 19:35:45,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:45,793 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 19:35:45,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:45,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976135361] [2022-11-18 19:35:45,794 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:35:45,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518808002] [2022-11-18 19:35:45,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518808002] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:35:45,794 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:35:45,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-18 19:35:45,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027333681] [2022-11-18 19:35:45,794 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:45,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:35:45,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:45,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:35:45,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:35:45,796 INFO L87 Difference]: Start difference. First operand 83 states and 92 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 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) [2022-11-18 19:35:46,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:46,460 INFO L93 Difference]: Finished difference Result 112 states and 119 transitions. [2022-11-18 19:35:46,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:35:46,460 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 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) Word has length 34 [2022-11-18 19:35:46,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:46,461 INFO L225 Difference]: With dead ends: 112 [2022-11-18 19:35:46,461 INFO L226 Difference]: Without dead ends: 91 [2022-11-18 19:35:46,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:35:46,462 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 156 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:46,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 86 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:35:46,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-18 19:35:46,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 68. [2022-11-18 19:35:46,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.0895522388059702) internal successors, (73), 67 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:46,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2022-11-18 19:35:46,496 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 34 [2022-11-18 19:35:46,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:46,497 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2022-11-18 19:35:46,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 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) [2022-11-18 19:35:46,497 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2022-11-18 19:35:46,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-18 19:35:46,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:46,504 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:46,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:46,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:46,712 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:35:46,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:46,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1737020496, now seen corresponding path program 1 times [2022-11-18 19:35:46,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:46,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049491652] [2022-11-18 19:35:46,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:46,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:46,751 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:35:46,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1304184790] [2022-11-18 19:35:46,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:46,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:46,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:46,758 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:46,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 19:35:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:46,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-18 19:35:46,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:46,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 19:35:47,015 INFO L350 Elim1Store]: Elim1 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 104 treesize of output 93 [2022-11-18 19:35:47,031 INFO L321 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2022-11-18 19:35:47,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 144 [2022-11-18 19:35:47,099 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-18 19:35:47,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 97 treesize of output 31 [2022-11-18 19:35:47,141 INFO L350 Elim1Store]: Elim1 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 31 treesize of output 15 [2022-11-18 19:35:47,228 INFO L350 Elim1Store]: Elim1 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 104 treesize of output 93 [2022-11-18 19:35:47,244 INFO L321 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2022-11-18 19:35:47,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 144 [2022-11-18 19:35:47,357 INFO L350 Elim1Store]: Elim1 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 31 treesize of output 15 [2022-11-18 19:35:47,461 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 52 [2022-11-18 19:35:47,476 INFO L321 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-11-18 19:35:47,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 97 [2022-11-18 19:35:47,523 INFO L321 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2022-11-18 19:35:47,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 75 treesize of output 26 [2022-11-18 19:35:47,582 INFO L350 Elim1Store]: Elim1 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 31 treesize of output 15 [2022-11-18 19:35:47,752 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:47,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:49,754 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 55 [2022-11-18 19:35:49,776 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:35:49,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 104 [2022-11-18 19:35:49,950 INFO L321 Elim1Store]: treesize reduction 24, result has 55.6 percent of original size [2022-11-18 19:35:49,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 66 [2022-11-18 19:35:49,992 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:35:49,993 INFO L350 Elim1Store]: Elim1 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 56 treesize of output 43 [2022-11-18 19:35:50,086 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:50,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:50,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049491652] [2022-11-18 19:35:50,087 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:35:50,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304184790] [2022-11-18 19:35:50,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304184790] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:35:50,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:35:50,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 20] total 28 [2022-11-18 19:35:50,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131093970] [2022-11-18 19:35:50,088 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:50,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-18 19:35:50,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:50,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-18 19:35:50,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=659, Unknown=0, NotChecked=0, Total=756 [2022-11-18 19:35:50,089 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand has 28 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 28 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:52,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:52,077 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2022-11-18 19:35:52,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 19:35:52,078 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 28 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-18 19:35:52,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:52,079 INFO L225 Difference]: With dead ends: 82 [2022-11-18 19:35:52,079 INFO L226 Difference]: Without dead ends: 55 [2022-11-18 19:35:52,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=159, Invalid=1101, Unknown=0, NotChecked=0, Total=1260 [2022-11-18 19:35:52,080 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 74 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:52,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 183 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 503 Invalid, 0 Unknown, 8 Unchecked, 1.3s Time] [2022-11-18 19:35:52,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-18 19:35:52,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 43. [2022-11-18 19:35:52,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.119047619047619) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:52,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2022-11-18 19:35:52,091 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 36 [2022-11-18 19:35:52,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:52,092 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2022-11-18 19:35:52,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 28 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:52,092 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2022-11-18 19:35:52,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-18 19:35:52,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:52,093 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:52,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:52,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-18 19:35:52,306 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:35:52,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:52,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1201221586, now seen corresponding path program 6 times [2022-11-18 19:35:52,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:52,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822783708] [2022-11-18 19:35:52,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:52,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:52,323 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:35:52,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604598066] [2022-11-18 19:35:52,324 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 19:35:52,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:52,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:52,326 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:52,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 19:35:52,891 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-11-18 19:35:52,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:35:52,896 WARN L261 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 93 conjunts are in the unsatisfiable core [2022-11-18 19:35:52,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:53,067 INFO L350 Elim1Store]: Elim1 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 64 treesize of output 59 [2022-11-18 19:35:53,072 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:35:53,078 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 21 treesize of output 21 [2022-11-18 19:35:53,241 INFO L350 Elim1Store]: Elim1 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 73 treesize of output 66 [2022-11-18 19:35:53,255 INFO L321 Elim1Store]: treesize reduction 55, result has 1.8 percent of original size [2022-11-18 19:35:53,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 111 [2022-11-18 19:35:53,275 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:35:53,462 INFO L350 Elim1Store]: Elim1 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 108 treesize of output 99 [2022-11-18 19:35:53,477 INFO L321 Elim1Store]: treesize reduction 55, result has 1.8 percent of original size [2022-11-18 19:35:53,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 156 [2022-11-18 19:35:53,883 INFO L350 Elim1Store]: Elim1 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 102 treesize of output 91 [2022-11-18 19:35:53,895 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-18 19:35:53,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 142 [2022-11-18 19:35:53,958 INFO L321 Elim1Store]: treesize reduction 51, result has 5.6 percent of original size [2022-11-18 19:35:53,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 95 treesize of output 25 [2022-11-18 19:35:54,082 INFO L350 Elim1Store]: Elim1 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 102 treesize of output 91 [2022-11-18 19:35:54,102 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-18 19:35:54,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 142 [2022-11-18 19:35:54,166 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-11-18 19:35:54,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 96 treesize of output 39 [2022-11-18 19:35:54,247 INFO L350 Elim1Store]: Elim1 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 102 treesize of output 91 [2022-11-18 19:35:54,262 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-18 19:35:54,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 142 [2022-11-18 19:35:54,494 INFO L350 Elim1Store]: Elim1 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 102 treesize of output 91 [2022-11-18 19:35:54,504 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-18 19:35:54,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 142 [2022-11-18 19:35:54,536 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:35:54,634 INFO L350 Elim1Store]: Elim1 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 102 treesize of output 91 [2022-11-18 19:35:54,649 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-18 19:35:54,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 142 [2022-11-18 19:35:54,692 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:35:54,786 INFO L350 Elim1Store]: Elim1 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 57 treesize of output 50 [2022-11-18 19:35:54,800 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-18 19:35:54,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-11-18 19:35:54,863 INFO L321 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2022-11-18 19:35:54,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 73 treesize of output 24 [2022-11-18 19:35:54,977 INFO L350 Elim1Store]: Elim1 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 25 treesize of output 13 [2022-11-18 19:35:55,065 INFO L350 Elim1Store]: Elim1 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 57 treesize of output 50 [2022-11-18 19:35:55,078 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-18 19:35:55,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-11-18 19:35:55,158 INFO L321 Elim1Store]: treesize reduction 27, result has 35.7 percent of original size [2022-11-18 19:35:55,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 32 [2022-11-18 19:35:55,370 INFO L350 Elim1Store]: Elim1 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 67 treesize of output 60 [2022-11-18 19:35:55,383 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-18 19:35:55,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 105 [2022-11-18 19:35:55,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 60 treesize of output 12 [2022-11-18 19:35:56,057 INFO L350 Elim1Store]: Elim1 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 61 treesize of output 53 [2022-11-18 19:35:56,063 INFO L350 Elim1Store]: Elim1 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 47 treesize of output 41 [2022-11-18 19:35:56,111 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:56,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:36:47,703 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse11 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse6 (<= .cse11 2147483647)) (.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse5 (* .cse11 8))) (and (or (let ((.cse0 (let ((.cse4 (+ .cse5 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (store .cse3 .cse4 (+ (- 1) (select .cse3 .cse4)))))) (and (forall ((v_ArrVal_297 Int) (v_ArrVal_296 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse1 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse0 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_296) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_297) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_297 Int) (v_ArrVal_296 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse0 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_296) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_297) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))))) .cse6) (or (not .cse6) (let ((.cse8 (let ((.cse10 (+ .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse3 .cse10 (+ (- 1) (select .cse3 .cse10)))))) (and (forall ((v_ArrVal_297 Int) (v_ArrVal_296 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= 0 (select (store (store .cse8 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_296) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_297) |c_ULTIMATE.start_main_~a~0#1.offset|)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((v_ArrVal_297 Int) (v_ArrVal_296 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse9 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (= (select (store (store .cse8 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_296) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_297) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))))))))) is different from false [2022-11-18 19:36:49,788 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse3 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (and (forall ((v_ArrVal_297 Int) (v_ArrVal_296 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_296) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_297) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((v_ArrVal_297 Int) (v_ArrVal_296 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1)) (= (select (store (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_296) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_297) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) is different from false [2022-11-18 19:36:58,017 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:37:06,388 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:37:32,072 WARN L233 SmtUtils]: Spent 20.98s on a formula simplification. DAG size of input: 82 DAG size of output: 59 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:37:43,121 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:38:10,795 WARN L233 SmtUtils]: Spent 12.27s on a formula simplification. DAG size of input: 105 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:38:15,931 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 55 [2022-11-18 19:38:15,969 INFO L321 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2022-11-18 19:38:15,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 1 [2022-11-18 19:38:15,975 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-18 19:38:15,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:15,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822783708] [2022-11-18 19:38:15,976 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:38:15,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604598066] [2022-11-18 19:38:15,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604598066] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:38:15,976 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:38:15,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 31] total 55 [2022-11-18 19:38:15,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131685669] [2022-11-18 19:38:15,976 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:38:15,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-18 19:38:15,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:15,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-18 19:38:15,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=511, Invalid=2222, Unknown=31, NotChecked=206, Total=2970 [2022-11-18 19:38:15,979 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 55 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 55 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:46,377 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 89 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:39:21,770 WARN L233 SmtUtils]: Spent 10.54s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:39:23,776 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse5 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (let ((.cse0 (forall ((v_ArrVal_297 Int) (v_ArrVal_296 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse3 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_296) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_297) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (.cse1 (forall ((v_ArrVal_297 Int) (v_ArrVal_296 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1)) (= (select (store (store .cse3 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_296) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_297) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) (and .cse0 .cse1 (or (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0) (and .cse0 .cse1))))) is different from false [2022-11-18 19:39:25,830 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (or (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) c_~N~0) (forall ((v_ArrVal_297 Int)) (= (select (store .cse0 (+ (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_297) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0))) (forall ((v_ArrVal_297 Int) (v_ArrVal_296 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse1 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store .cse0 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_296) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_297) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))) (forall ((v_ArrVal_297 Int) (v_ArrVal_296 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1)) (= (select (store (store .cse0 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_296) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_297) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) is different from false [2022-11-18 19:39:32,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:39:32,154 INFO L93 Difference]: Finished difference Result 124 states and 141 transitions. [2022-11-18 19:39:32,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-18 19:39:32,155 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 55 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-11-18 19:39:32,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:39:32,157 INFO L225 Difference]: With dead ends: 124 [2022-11-18 19:39:32,157 INFO L226 Difference]: Without dead ends: 99 [2022-11-18 19:39:32,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 18 SyntacticMatches, 10 SemanticMatches, 69 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 1957 ImplicationChecksByTransitivity, 213.4s TimeCoverageRelationStatistics Valid=779, Invalid=3607, Unknown=52, NotChecked=532, Total=4970 [2022-11-18 19:39:32,160 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 55 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 264 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:39:32,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 69 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 164 Invalid, 0 Unknown, 264 Unchecked, 0.5s Time] [2022-11-18 19:39:32,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-18 19:39:32,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 86. [2022-11-18 19:39:32,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.1411764705882352) internal successors, (97), 85 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:32,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 97 transitions. [2022-11-18 19:39:32,198 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 97 transitions. Word has length 40 [2022-11-18 19:39:32,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:39:32,199 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 97 transitions. [2022-11-18 19:39:32,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 55 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:32,199 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 97 transitions. [2022-11-18 19:39:32,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-18 19:39:32,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:32,200 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:32,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:32,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:32,411 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:39:32,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:32,411 INFO L85 PathProgramCache]: Analyzing trace with hash 673126032, now seen corresponding path program 7 times [2022-11-18 19:39:32,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:32,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779051009] [2022-11-18 19:39:32,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:32,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:32,431 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:39:32,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [619758952] [2022-11-18 19:39:32,431 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 19:39:32,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:32,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:32,434 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:32,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 19:39:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:32,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 19:39:32,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:32,781 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 19:39:32,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:39:32,962 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 19:39:32,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:32,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779051009] [2022-11-18 19:39:32,962 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:39:32,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619758952] [2022-11-18 19:39:32,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619758952] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:39:32,963 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:39:32,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-11-18 19:39:32,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087375863] [2022-11-18 19:39:32,963 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:39:32,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 19:39:32,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:32,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 19:39:32,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:39:32,965 INFO L87 Difference]: Start difference. First operand 86 states and 97 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:33,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:39:33,496 INFO L93 Difference]: Finished difference Result 177 states and 195 transitions. [2022-11-18 19:39:33,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:39:33,496 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-11-18 19:39:33,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:39:33,497 INFO L225 Difference]: With dead ends: 177 [2022-11-18 19:39:33,498 INFO L226 Difference]: Without dead ends: 140 [2022-11-18 19:39:33,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 64 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:39:33,499 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 199 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:39:33,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 99 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:39:33,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-18 19:39:33,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 97. [2022-11-18 19:39:33,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 96 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:33,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2022-11-18 19:39:33,524 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 42 [2022-11-18 19:39:33,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:39:33,525 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2022-11-18 19:39:33,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:33,525 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2022-11-18 19:39:33,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 19:39:33,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:33,526 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:33,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:33,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 19:39:33,727 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:39:33,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:33,727 INFO L85 PathProgramCache]: Analyzing trace with hash 2112995272, now seen corresponding path program 2 times [2022-11-18 19:39:33,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:33,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18240317] [2022-11-18 19:39:33,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:33,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:33,739 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:39:33,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890195901] [2022-11-18 19:39:33,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:39:33,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:33,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:33,747 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:33,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 19:39:33,999 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:39:33,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:39:34,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 76 conjunts are in the unsatisfiable core [2022-11-18 19:39:34,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:34,060 INFO L350 Elim1Store]: Elim1 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 64 treesize of output 59 [2022-11-18 19:39:34,065 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 21 treesize of output 21 [2022-11-18 19:39:34,073 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:39:34,133 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 22 [2022-11-18 19:39:34,206 INFO L350 Elim1Store]: Elim1 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 104 treesize of output 93 [2022-11-18 19:39:34,218 INFO L321 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2022-11-18 19:39:34,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 144 [2022-11-18 19:39:34,281 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-18 19:39:34,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 98 treesize of output 41 [2022-11-18 19:39:34,325 INFO L350 Elim1Store]: Elim1 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 116 treesize of output 105 [2022-11-18 19:39:34,334 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:39:34,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 145 [2022-11-18 19:39:34,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 23 [2022-11-18 19:39:34,454 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 22 [2022-11-18 19:39:34,553 INFO L350 Elim1Store]: Elim1 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 104 treesize of output 93 [2022-11-18 19:39:34,567 INFO L321 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2022-11-18 19:39:34,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 144 [2022-11-18 19:39:34,608 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:39:34,708 INFO L350 Elim1Store]: Elim1 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 114 treesize of output 103 [2022-11-18 19:39:34,718 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:39:34,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 143 [2022-11-18 19:39:34,752 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:39:34,861 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 22 [2022-11-18 19:39:34,961 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 52 [2022-11-18 19:39:34,972 INFO L321 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-11-18 19:39:34,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 97 [2022-11-18 19:39:35,098 INFO L350 Elim1Store]: Elim1 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 112 treesize of output 101 [2022-11-18 19:39:35,107 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:39:35,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 141 [2022-11-18 19:39:35,195 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:39:35,196 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 34 treesize of output 27 [2022-11-18 19:39:35,292 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:35,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:03,952 WARN L233 SmtUtils]: Spent 12.26s on a formula simplification. DAG size of input: 55 DAG size of output: 36 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:40:07,287 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 55 [2022-11-18 19:40:07,368 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:40:07,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 104 [2022-11-18 19:40:07,494 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:40:07,494 INFO L350 Elim1Store]: Elim1 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 150 treesize of output 133 [2022-11-18 19:40:07,609 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:07,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:07,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18240317] [2022-11-18 19:40:07,609 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:40:07,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890195901] [2022-11-18 19:40:07,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890195901] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:07,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:40:07,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 25] total 36 [2022-11-18 19:40:07,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488699871] [2022-11-18 19:40:07,610 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:07,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-18 19:40:07,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:07,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-18 19:40:07,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1125, Unknown=6, NotChecked=0, Total=1260 [2022-11-18 19:40:07,612 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand has 36 states, 36 states have (on average 2.0555555555555554) internal successors, (74), 36 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:12,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:12,269 INFO L93 Difference]: Finished difference Result 210 states and 232 transitions. [2022-11-18 19:40:12,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-18 19:40:12,270 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.0555555555555554) internal successors, (74), 36 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-18 19:40:12,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:12,271 INFO L225 Difference]: With dead ends: 210 [2022-11-18 19:40:12,271 INFO L226 Difference]: Without dead ends: 208 [2022-11-18 19:40:12,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 44 SyntacticMatches, 11 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 35.6s TimeCoverageRelationStatistics Valid=287, Invalid=2569, Unknown=6, NotChecked=0, Total=2862 [2022-11-18 19:40:12,273 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 115 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 606 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:12,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 299 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 298 Invalid, 0 Unknown, 606 Unchecked, 0.5s Time] [2022-11-18 19:40:12,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-18 19:40:12,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 176. [2022-11-18 19:40:12,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 1.1314285714285715) internal successors, (198), 175 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:12,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 198 transitions. [2022-11-18 19:40:12,339 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 198 transitions. Word has length 44 [2022-11-18 19:40:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:12,340 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 198 transitions. [2022-11-18 19:40:12,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.0555555555555554) internal successors, (74), 36 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 198 transitions. [2022-11-18 19:40:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 19:40:12,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:12,341 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:12,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:12,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 19:40:12,548 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:40:12,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:12,549 INFO L85 PathProgramCache]: Analyzing trace with hash -22665458, now seen corresponding path program 8 times [2022-11-18 19:40:12,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:12,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335319334] [2022-11-18 19:40:12,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:12,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:12,561 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:40:12,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033257741] [2022-11-18 19:40:12,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:40:12,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:12,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:12,563 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:12,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 19:40:12,673 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:40:12,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:40:12,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 19:40:12,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:12,893 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 19:40:12,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:13,063 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 19:40:13,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:13,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335319334] [2022-11-18 19:40:13,064 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:40:13,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033257741] [2022-11-18 19:40:13,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033257741] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:13,064 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:40:13,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-11-18 19:40:13,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414767718] [2022-11-18 19:40:13,065 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:13,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 19:40:13,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:13,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 19:40:13,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:40:13,067 INFO L87 Difference]: Start difference. First operand 176 states and 198 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:13,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:13,769 INFO L93 Difference]: Finished difference Result 234 states and 254 transitions. [2022-11-18 19:40:13,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:40:13,769 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-18 19:40:13,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:13,770 INFO L225 Difference]: With dead ends: 234 [2022-11-18 19:40:13,770 INFO L226 Difference]: Without dead ends: 160 [2022-11-18 19:40:13,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:40:13,771 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 133 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:13,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 125 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:40:13,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-18 19:40:13,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 131. [2022-11-18 19:40:13,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 1.1076923076923078) internal successors, (144), 130 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:13,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 144 transitions. [2022-11-18 19:40:13,806 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 144 transitions. Word has length 44 [2022-11-18 19:40:13,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:13,806 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 144 transitions. [2022-11-18 19:40:13,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:13,807 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 144 transitions. [2022-11-18 19:40:13,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-18 19:40:13,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:13,808 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:13,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:14,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:14,009 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:40:14,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:14,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1258986306, now seen corresponding path program 3 times [2022-11-18 19:40:14,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:14,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020591922] [2022-11-18 19:40:14,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:14,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:14,025 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:40:14,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [335687691] [2022-11-18 19:40:14,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:40:14,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:14,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:14,027 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:14,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 19:40:14,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-18 19:40:14,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:40:14,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 90 conjunts are in the unsatisfiable core [2022-11-18 19:40:14,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:14,925 INFO L350 Elim1Store]: Elim1 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 64 treesize of output 59 [2022-11-18 19:40:14,928 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:40:14,934 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 21 treesize of output 21 [2022-11-18 19:40:15,170 INFO L350 Elim1Store]: Elim1 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 104 treesize of output 93 [2022-11-18 19:40:15,180 INFO L321 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2022-11-18 19:40:15,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 144 [2022-11-18 19:40:15,328 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 52 [2022-11-18 19:40:15,337 INFO L321 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-11-18 19:40:15,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 97 [2022-11-18 19:40:15,369 INFO L321 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2022-11-18 19:40:15,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 75 treesize of output 26 [2022-11-18 19:40:15,445 INFO L350 Elim1Store]: Elim1 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 104 treesize of output 93 [2022-11-18 19:40:15,461 INFO L321 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2022-11-18 19:40:15,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 144 [2022-11-18 19:40:15,511 INFO L321 Elim1Store]: treesize reduction 55, result has 5.2 percent of original size [2022-11-18 19:40:15,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 98 treesize of output 35 [2022-11-18 19:40:15,768 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 52 [2022-11-18 19:40:15,778 INFO L321 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-11-18 19:40:15,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 97 [2022-11-18 19:40:15,784 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:40:15,929 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 52 [2022-11-18 19:40:15,941 INFO L321 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-11-18 19:40:15,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 97 [2022-11-18 19:40:16,122 INFO L350 Elim1Store]: Elim1 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 110 treesize of output 99 [2022-11-18 19:40:16,130 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:40:16,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 139 [2022-11-18 19:40:16,496 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 52 [2022-11-18 19:40:16,509 INFO L321 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-11-18 19:40:16,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 97 [2022-11-18 19:40:16,530 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:40:16,665 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 22 [2022-11-18 19:40:16,707 INFO L350 Elim1Store]: Elim1 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 104 treesize of output 93 [2022-11-18 19:40:16,722 INFO L321 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2022-11-18 19:40:16,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 144 [2022-11-18 19:40:16,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 63 [2022-11-18 19:40:17,745 INFO L350 Elim1Store]: Elim1 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 77 [2022-11-18 19:40:17,760 INFO L321 Elim1Store]: treesize reduction 11, result has 21.4 percent of original size [2022-11-18 19:40:17,761 INFO L350 Elim1Store]: Elim1 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 67 treesize of output 48 [2022-11-18 19:40:17,814 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:17,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:25,807 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 55 [2022-11-18 19:40:25,827 INFO L321 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2022-11-18 19:40:25,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 1 [2022-11-18 19:40:25,832 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 35 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 19:40:25,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:25,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020591922] [2022-11-18 19:40:25,833 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:40:25,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335687691] [2022-11-18 19:40:25,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335687691] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:25,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:40:25,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 29] total 58 [2022-11-18 19:40:25,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150040480] [2022-11-18 19:40:25,834 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:25,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-11-18 19:40:25,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:25,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-11-18 19:40:25,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=2778, Unknown=0, NotChecked=0, Total=3306 [2022-11-18 19:40:25,836 INFO L87 Difference]: Start difference. First operand 131 states and 144 transitions. Second operand has 58 states, 58 states have (on average 1.5862068965517242) internal successors, (92), 58 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:32,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:32,189 INFO L93 Difference]: Finished difference Result 140 states and 152 transitions. [2022-11-18 19:40:32,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-18 19:40:32,189 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 1.5862068965517242) internal successors, (92), 58 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-11-18 19:40:32,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:32,190 INFO L225 Difference]: With dead ends: 140 [2022-11-18 19:40:32,190 INFO L226 Difference]: Without dead ends: 103 [2022-11-18 19:40:32,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 40 SyntacticMatches, 8 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3319 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=1285, Invalid=7835, Unknown=0, NotChecked=0, Total=9120 [2022-11-18 19:40:32,193 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 171 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 307 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:32,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 226 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 275 Invalid, 0 Unknown, 307 Unchecked, 0.6s Time] [2022-11-18 19:40:32,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-18 19:40:32,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 96. [2022-11-18 19:40:32,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.1368421052631579) internal successors, (108), 95 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:32,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 108 transitions. [2022-11-18 19:40:32,216 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 108 transitions. Word has length 48 [2022-11-18 19:40:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:32,216 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 108 transitions. [2022-11-18 19:40:32,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 1.5862068965517242) internal successors, (92), 58 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:32,217 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 108 transitions. [2022-11-18 19:40:32,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-18 19:40:32,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:32,217 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:32,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-18 19:40:32,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:32,424 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:40:32,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:32,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1770455222, now seen corresponding path program 9 times [2022-11-18 19:40:32,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:32,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314300430] [2022-11-18 19:40:32,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:32,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:32,452 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:40:32,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842295541] [2022-11-18 19:40:32,456 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:40:32,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:32,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:32,457 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:32,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 19:40:33,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-18 19:40:33,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:40:33,594 WARN L261 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 100 conjunts are in the unsatisfiable core [2022-11-18 19:40:33,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:33,771 INFO L350 Elim1Store]: Elim1 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 64 treesize of output 59 [2022-11-18 19:40:33,774 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:40:33,782 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 21 treesize of output 21 [2022-11-18 19:40:33,901 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-18 19:40:33,971 INFO L350 Elim1Store]: Elim1 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 57 treesize of output 50 [2022-11-18 19:40:33,983 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-18 19:40:33,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-11-18 19:40:34,046 INFO L321 Elim1Store]: treesize reduction 27, result has 35.7 percent of original size [2022-11-18 19:40:34,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 73 treesize of output 32 [2022-11-18 19:40:34,225 INFO L350 Elim1Store]: Elim1 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 67 treesize of output 60 [2022-11-18 19:40:34,237 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-18 19:40:34,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 105 [2022-11-18 19:40:34,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 60 treesize of output 12 [2022-11-18 19:40:34,974 INFO L350 Elim1Store]: Elim1 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 152 treesize of output 139 [2022-11-18 19:40:34,986 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-18 19:40:34,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 132 treesize of output 184 [2022-11-18 19:40:35,068 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:40:35,323 INFO L350 Elim1Store]: Elim1 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 132 treesize of output 121 [2022-11-18 19:40:35,343 INFO L321 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2022-11-18 19:40:35,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 155 [2022-11-18 19:40:35,427 INFO L321 Elim1Store]: treesize reduction 102, result has 18.4 percent of original size [2022-11-18 19:40:35,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 130 treesize of output 86 [2022-11-18 19:40:35,699 INFO L350 Elim1Store]: Elim1 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 79 treesize of output 72 [2022-11-18 19:40:35,713 INFO L321 Elim1Store]: treesize reduction 55, result has 1.8 percent of original size [2022-11-18 19:40:35,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 117 [2022-11-18 19:40:35,743 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:40:35,964 INFO L350 Elim1Store]: Elim1 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 114 treesize of output 103 [2022-11-18 19:40:35,978 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-18 19:40:35,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 102 treesize of output 154 [2022-11-18 19:40:36,029 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:40:36,386 INFO L350 Elim1Store]: Elim1 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 102 treesize of output 91 [2022-11-18 19:40:36,396 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-18 19:40:36,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 142 [2022-11-18 19:40:36,449 INFO L321 Elim1Store]: treesize reduction 51, result has 5.6 percent of original size [2022-11-18 19:40:36,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 96 treesize of output 35 [2022-11-18 19:40:36,588 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-18 19:40:36,618 INFO L350 Elim1Store]: Elim1 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 57 treesize of output 50 [2022-11-18 19:40:36,631 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-18 19:40:36,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-11-18 19:40:36,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 60 treesize of output 12 [2022-11-18 19:40:36,969 INFO L350 Elim1Store]: Elim1 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 92 treesize of output 83 [2022-11-18 19:40:36,986 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-18 19:40:36,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 120 [2022-11-18 19:40:37,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 60 treesize of output 12 [2022-11-18 19:40:37,492 INFO L350 Elim1Store]: Elim1 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 102 treesize of output 91 [2022-11-18 19:40:37,503 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-18 19:40:37,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 142 [2022-11-18 19:40:37,682 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-18 19:40:37,770 INFO L350 Elim1Store]: Elim1 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 102 treesize of output 91 [2022-11-18 19:40:37,790 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-18 19:40:37,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 142 [2022-11-18 19:40:37,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 45 [2022-11-18 19:40:38,097 INFO L350 Elim1Store]: Elim1 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 109 treesize of output 98 [2022-11-18 19:40:38,116 INFO L321 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2022-11-18 19:40:38,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 138 [2022-11-18 19:40:38,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 60 treesize of output 12 [2022-11-18 19:40:39,110 INFO L350 Elim1Store]: Elim1 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 67 treesize of output 59 [2022-11-18 19:40:39,117 INFO L350 Elim1Store]: Elim1 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 51 treesize of output 45 [2022-11-18 19:40:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:39,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:58,619 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse18 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse5 (<= .cse18 2147483647)) (.cse17 (* .cse18 8))) (let ((.cse10 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (not .cse5)) (.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse4 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (or (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse1 (store .cse3 .cse4 v_ArrVal_656)) (.cse2 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1)) (= (select (store (store .cse1 .cse2 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (select .cse1 .cse2) (+ v_ArrVal_658 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse5) (or .cse6 (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (v_ArrVal_656 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse8 (store .cse3 .cse10 v_ArrVal_656)) (.cse9 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1)) (< (select .cse8 .cse9) (+ v_ArrVal_658 1)) (= (select (store (store .cse8 .cse9 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse11 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse12 (store .cse3 .cse10 v_ArrVal_656)) (.cse13 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11) c_~N~0) (< (select .cse12 .cse13) (+ v_ArrVal_658 1)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse12 .cse13 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) .cse6) (or .cse5 (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse14 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse15 (store .cse3 .cse4 v_ArrVal_656)) (.cse16 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse14) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse14 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse15 .cse16) (+ v_ArrVal_658 1)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store .cse15 .cse16 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))))))) is different from false [2022-11-18 19:41:00,866 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse17 (* .cse18 8)) (.cse6 (<= .cse18 2147483647))) (let ((.cse5 (not .cse6)) (.cse4 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse10 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (or (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (v_ArrVal_656 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse1 (store .cse3 .cse4 v_ArrVal_656)) (.cse2 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse1 .cse2) (+ v_ArrVal_658 1)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1)) (= (select (store (store .cse1 .cse2 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse5) (or .cse6 (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse9 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse7 (store .cse3 .cse10 v_ArrVal_656)) (.cse8 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (= (select (store (store .cse7 .cse8 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (select .cse7 .cse8) (+ v_ArrVal_658 1)))))) (or .cse5 (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse12 (store .cse3 .cse4 v_ArrVal_656)) (.cse13 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse11 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11) c_~N~0) (= (select (store (store .cse12 .cse13 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (select .cse12 .cse13) (+ v_ArrVal_658 1)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or .cse6 (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse14 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse15 (store .cse3 .cse10 v_ArrVal_656)) (.cse16 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse14) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse14 1)) (< (select .cse15 .cse16) (+ v_ArrVal_658 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (= (select (store (store .cse15 .cse16 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))))))) is different from false [2022-11-18 19:41:03,744 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse37 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse36 (* .cse37 8)) (.cse1 (<= .cse37 2147483647)) (.cse35 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse0 (<= .cse35 2147483647)) (.cse10 (not .cse1)) (.cse14 (+ .cse36 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (+ .cse36 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse18 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse20 (* .cse35 8))) (and (or .cse0 (let ((.cse5 (let ((.cse19 (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (store .cse18 .cse19 (+ (- 1) (select .cse18 .cse19)))))) (and (or .cse1 (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse2 (store .cse5 .cse6 v_ArrVal_656)) (.cse3 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= (select (store (store .cse2 .cse3 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4 1)) (< (select .cse2 .cse3) (+ v_ArrVal_658 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or .cse1 (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse7 (store .cse5 .cse6 v_ArrVal_656)) (.cse8 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse9 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (select .cse7 .cse8) (+ v_ArrVal_658 1)) (= (select (store (store .cse7 .cse8 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or .cse10 (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (v_ArrVal_656 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse11 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse12 (store .cse5 .cse14 v_ArrVal_656)) (.cse13 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11 1)) (= (select (store (store .cse12 .cse13 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (select .cse12 .cse13) (+ v_ArrVal_658 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or .cse10 (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse15 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse16 (store .cse5 .cse14 v_ArrVal_656)) (.cse17 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse16 .cse17 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (select .cse16 .cse17) (+ v_ArrVal_658 1))))))))) (or (not .cse0) (let ((.cse24 (let ((.cse34 (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse18 .cse34 (+ (- 1) (select .cse18 .cse34)))))) (and (or .cse10 (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse21 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse22 (store .cse24 .cse14 v_ArrVal_656)) (.cse23 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse21) c_~N~0) (= (select (store (store .cse22 .cse23 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse21 1)) (< (select .cse22 .cse23) (+ v_ArrVal_658 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or .cse1 (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse27 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse25 (store .cse24 .cse6 v_ArrVal_656)) (.cse26 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (= 0 (select (store (store .cse25 .cse26 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse27) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse27 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse25 .cse26) (+ v_ArrVal_658 1)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or .cse10 (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (v_ArrVal_656 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse28 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse29 (store .cse24 .cse14 v_ArrVal_656)) (.cse30 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse28) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse28 1)) (= (select (store (store .cse29 .cse30 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (select .cse29 .cse30) (+ v_ArrVal_658 1)))))) (or .cse1 (forall ((v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse31 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse32 (store .cse24 .cse6 v_ArrVal_656)) (.cse33 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse31) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse31 1)) (< (select .cse32 .cse33) (+ v_ArrVal_658 1)) (= (select (store (store .cse32 .cse33 v_ArrVal_658) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))))))))) is different from false [2022-11-18 19:41:26,176 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:41:32,578 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:41:45,193 WARN L233 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:42:23,352 WARN L233 SmtUtils]: Spent 33.09s on a formula simplification. DAG size of input: 97 DAG size of output: 69 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:42:59,583 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse27 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse8 (<= .cse27 2147483647)) (.cse26 (* .cse27 8))) (let ((.cse14 (+ .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse15 (not .cse8)) (.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse6 (+ .cse26 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse7 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse2 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse3 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse1 (store (let ((.cse4 (store (store (store .cse5 .cse6 v_ArrVal_648) .cse2 v_ArrVal_650) .cse3 v_ArrVal_651))) (store .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse7 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse1 .cse2) (+ v_ArrVal_658 1)) (= (select (store (store .cse1 .cse2 v_ArrVal_658) .cse3 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) .cse8) (or (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse10 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse12 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse11 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse9 (store (let ((.cse13 (store (store (store .cse5 .cse14 v_ArrVal_648) .cse10 v_ArrVal_650) .cse12 v_ArrVal_651))) (store .cse13 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse7 v_ArrVal_656))) (or (< (select .cse9 .cse10) (+ v_ArrVal_658 1)) (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11 1)) (= (select (store (store .cse9 .cse10 v_ArrVal_658) .cse12 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) .cse15) (or (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse18 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse19 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse16 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse17 (store (let ((.cse20 (store (store (store .cse5 .cse14 v_ArrVal_648) .cse18 v_ArrVal_650) .cse19 v_ArrVal_651))) (store .cse20 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse7 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse17 .cse18) (+ v_ArrVal_658 1)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store .cse17 .cse18 v_ArrVal_658) .cse19 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))) .cse15) (or (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse23 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse24 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse22 (store (let ((.cse25 (store (store (store .cse5 .cse6 v_ArrVal_648) .cse23 v_ArrVal_650) .cse24 v_ArrVal_651))) (store .cse25 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse25 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse7 v_ArrVal_656)) (.cse21 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse21) c_~N~0) (< (select .cse22 .cse23) (+ v_ArrVal_658 1)) (= 0 (select (store (store .cse22 .cse23 v_ArrVal_658) .cse24 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse21 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) .cse8))))) is different from false [2022-11-18 19:43:01,838 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse27 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse26 (* .cse27 8)) (.cse0 (<= .cse27 2147483647))) (let ((.cse15 (not .cse0)) (.cse14 (+ .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse7 (+ .cse26 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse8 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or .cse0 (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse3 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse1 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse2 (store (let ((.cse5 (store (store (store .cse6 .cse7 v_ArrVal_648) .cse3 v_ArrVal_650) .cse4 v_ArrVal_651))) (store .cse5 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse8 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1 1)) (< (select .cse2 .cse3) (+ v_ArrVal_658 1)) (= (select (store (store .cse2 .cse3 v_ArrVal_658) .cse4 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) (or (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse11 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse12 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse9 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse10 (store (let ((.cse13 (store (store (store .cse6 .cse14 v_ArrVal_648) .cse11 v_ArrVal_650) .cse12 v_ArrVal_651))) (store .cse13 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse8 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9) c_~N~0) (= (select (store (store .cse10 .cse11 v_ArrVal_658) .cse12 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 1)) (< (select .cse10 .cse11) (+ v_ArrVal_658 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) .cse15) (or .cse15 (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse18 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse19 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse16 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse17 (store (let ((.cse20 (store (store (store .cse6 .cse14 v_ArrVal_648) .cse18 v_ArrVal_650) .cse19 v_ArrVal_651))) (store .cse20 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse8 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store .cse17 .cse18 v_ArrVal_658) .cse19 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (select .cse17 .cse18) (+ v_ArrVal_658 1))))))) (or .cse0 (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse23 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse24 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse21 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse22 (store (let ((.cse25 (store (store (store .cse6 .cse7 v_ArrVal_648) .cse23 v_ArrVal_650) .cse24 v_ArrVal_651))) (store .cse25 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse25 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse8 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse21) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse21 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse22 .cse23) (+ v_ArrVal_658 1)) (= (select (store (store .cse22 .cse23 v_ArrVal_658) .cse24 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))))))))) is different from false [2022-11-18 19:43:04,499 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse54 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse53 (* .cse54 8)) (.cse1 (<= .cse54 2147483647)) (.cse52 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse0 (<= .cse52 2147483647)) (.cse16 (not .cse1)) (.cse15 (+ .cse53 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse8 (+ .cse53 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse9 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse27 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse29 (* .cse52 8))) (and (or .cse0 (let ((.cse7 (let ((.cse28 (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (store .cse27 .cse28 (+ (select .cse27 .cse28) |c_ULTIMATE.start_main_~i~0#1|))))) (and (or .cse1 (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse4 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse3 (store (let ((.cse6 (store (store (store .cse7 .cse8 v_ArrVal_648) .cse4 v_ArrVal_650) .cse5 v_ArrVal_651))) (store .cse6 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse9 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1)) (< (select .cse3 .cse4) (+ v_ArrVal_658 1)) (= (select (store (store .cse3 .cse4 v_ArrVal_658) .cse5 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) (or (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse12 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse13 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse10 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse11 (store (let ((.cse14 (store (store (store .cse7 .cse15 v_ArrVal_648) .cse12 v_ArrVal_650) .cse13 v_ArrVal_651))) (store .cse14 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse9 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse10) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse10 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse11 .cse12) (+ v_ArrVal_658 1)) (= (select (store (store .cse11 .cse12 v_ArrVal_658) .cse13 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) .cse16) (or .cse1 (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse19 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse20 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse17 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse18 (store (let ((.cse21 (store (store (store .cse7 .cse8 v_ArrVal_648) .cse19 v_ArrVal_650) .cse20 v_ArrVal_651))) (store .cse21 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|) (- 1)))) .cse9 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse18 .cse19 v_ArrVal_658) .cse20 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (select .cse18 .cse19) (+ v_ArrVal_658 1))))))) (or (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse24 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse25 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse22 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse23 (store (let ((.cse26 (store (store (store .cse7 .cse15 v_ArrVal_648) .cse24 v_ArrVal_650) .cse25 v_ArrVal_651))) (store .cse26 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse9 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse23 .cse24 v_ArrVal_658) .cse25 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22 1)) (< (select .cse23 .cse24) (+ v_ArrVal_658 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) .cse16)))) (or (not .cse0) (let ((.cse35 (let ((.cse51 (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse27 .cse51 (+ |c_ULTIMATE.start_main_~i~0#1| (select .cse27 .cse51)))))) (and (or (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse32 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse33 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse30 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse31 (store (let ((.cse34 (store (store (store .cse35 .cse15 v_ArrVal_648) .cse32 v_ArrVal_650) .cse33 v_ArrVal_651))) (store .cse34 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse34 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse9 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse30) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse31 .cse32 v_ArrVal_658) .cse33 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse30 1)) (< (select .cse31 .cse32) (+ v_ArrVal_658 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) .cse16) (or .cse1 (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse38 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse39 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse36 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse37 (store (let ((.cse40 (store (store (store .cse35 .cse8 v_ArrVal_648) .cse38 v_ArrVal_650) .cse39 v_ArrVal_651))) (store .cse40 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse9 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse36) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse37 .cse38) (+ v_ArrVal_658 1)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse36 1)) (= (select (store (store .cse37 .cse38 v_ArrVal_658) .cse39 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) (or .cse16 (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse43 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse44 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse41 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse42 (store (let ((.cse45 (store (store (store .cse35 .cse15 v_ArrVal_648) .cse43 v_ArrVal_650) .cse44 v_ArrVal_651))) (store .cse45 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse9 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse41) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse41 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (select .cse42 .cse43) (+ v_ArrVal_658 1)) (= (select (store (store .cse42 .cse43 v_ArrVal_658) .cse44 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))))) (or .cse1 (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse48 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse49 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse46 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse47 (store (let ((.cse50 (store (store (store .cse35 .cse8 v_ArrVal_648) .cse48 v_ArrVal_650) .cse49 v_ArrVal_651))) (store .cse50 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse50 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse9 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse46) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse46 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse47 .cse48) (+ v_ArrVal_658 1)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= 0 (select (store (store .cse47 .cse48 v_ArrVal_658) .cse49 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|)))))))))))))) is different from false [2022-11-18 19:43:06,618 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (let ((.cse12 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse12 |c_ULTIMATE.start_main_~a~0#1.offset| (select .cse12 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (.cse6 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse2 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse1 (store (let ((.cse4 (store (store (store .cse5 .cse6 v_ArrVal_648) .cse2 v_ArrVal_650) .cse3 v_ArrVal_651))) (store .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse6 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1)) (< (select .cse1 .cse2) (+ v_ArrVal_658 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (= (select (store (store .cse1 .cse2 v_ArrVal_658) .cse3 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))) (forall ((v_ArrVal_651 Int) (v_ArrVal_650 Int) (v_ArrVal_660 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_648 Int) (v_ArrVal_658 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_656 Int)) (let ((.cse9 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse10 (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse8 (store (let ((.cse11 (store (store (store .cse5 .cse6 v_ArrVal_648) .cse9 v_ArrVal_650) .cse10 v_ArrVal_651))) (store .cse11 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (- 1) (select .cse11 |c_ULTIMATE.start_main_~a~0#1.offset|)))) .cse6 v_ArrVal_656))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse8 .cse9) (+ v_ArrVal_658 1)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store .cse8 .cse9 v_ArrVal_658) .cse10 v_ArrVal_660) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))))) is different from false [2022-11-18 19:43:23,598 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:43:43,188 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:44:10,405 WARN L233 SmtUtils]: Spent 12.21s on a formula simplification. DAG size of input: 125 DAG size of output: 84 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:44:59,977 WARN L233 SmtUtils]: Spent 11.07s on a formula simplification. DAG size of input: 132 DAG size of output: 98 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:45:25,092 WARN L233 SmtUtils]: Spent 11.47s on a formula simplification that was a NOOP. DAG size: 158 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:46:01,496 INFO L350 Elim1Store]: Elim1 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 59 treesize of output 55 [2022-11-18 19:46:01,627 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:46:01,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 104 [2022-11-18 19:46:01,737 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:46:01,738 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:46:01,739 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:46:01,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:46:01,745 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:46:01,950 INFO L321 Elim1Store]: treesize reduction 23, result has 39.5 percent of original size [2022-11-18 19:46:01,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 552 treesize of output 516 [2022-11-18 19:46:02,239 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:46:02,240 INFO L350 Elim1Store]: Elim1 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 6290 treesize of output 6246 [2022-11-18 19:46:06,575 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 20 not checked. [2022-11-18 19:46:06,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:06,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314300430] [2022-11-18 19:46:06,576 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:46:06,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842295541] [2022-11-18 19:46:06,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842295541] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:06,576 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:46:06,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 76 [2022-11-18 19:46:06,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124972200] [2022-11-18 19:46:06,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:06,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-11-18 19:46:06,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:06,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-11-18 19:46:06,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=750, Invalid=3894, Unknown=76, NotChecked=980, Total=5700 [2022-11-18 19:46:06,579 INFO L87 Difference]: Start difference. First operand 96 states and 108 transitions. Second operand has 76 states, 76 states have (on average 1.236842105263158) internal successors, (94), 76 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,753 WARN L233 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 186 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:46:41,520 WARN L233 SmtUtils]: Spent 10.37s on a formula simplification. DAG size of input: 99 DAG size of output: 62 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:46:47,903 WARN L233 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 91 DAG size of output: 62 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:47:17,649 WARN L233 SmtUtils]: Spent 22.38s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:47:30,680 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-18 19:47:30,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-18 19:47:30,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 15 SyntacticMatches, 6 SemanticMatches, 91 ConstructedPredicates, 7 IntricatePredicates, 2 DeprecatedPredicates, 3521 ImplicationChecksByTransitivity, 388.0s TimeCoverageRelationStatistics Valid=1119, Invalid=6138, Unknown=81, NotChecked=1218, Total=8556 [2022-11-18 19:47:30,684 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 29 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 397 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:30,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 25 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 127 Invalid, 0 Unknown, 397 Unchecked, 0.3s Time] [2022-11-18 19:47:30,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2022-11-18 19:47:30,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-11-18 19:47:30,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:30,885 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:625) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:370) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:649) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:361) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:391) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:230) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 55 more [2022-11-18 19:47:30,888 INFO L158 Benchmark]: Toolchain (without parser) took 882684.12ms. Allocated memory was 117.4MB in the beginning and 207.6MB in the end (delta: 90.2MB). Free memory was 79.6MB in the beginning and 126.4MB in the end (delta: -46.8MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2022-11-18 19:47:30,889 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:47:30,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.83ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 92.6MB in the end (delta: -13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:47:30,889 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.55ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 90.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:47:30,889 INFO L158 Benchmark]: Boogie Preprocessor took 33.02ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 89.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:47:30,889 INFO L158 Benchmark]: RCFGBuilder took 433.05ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 77.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 19:47:30,890 INFO L158 Benchmark]: TraceAbstraction took 881858.08ms. Allocated memory was 117.4MB in the beginning and 207.6MB in the end (delta: 90.2MB). Free memory was 76.5MB in the beginning and 126.4MB in the end (delta: -49.9MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2022-11-18 19:47:30,891 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.83ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 92.6MB in the end (delta: -13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.55ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 90.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.02ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 89.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.05ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 77.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 881858.08ms. Allocated memory was 117.4MB in the beginning and 207.6MB in the end (delta: 90.2MB). Free memory was 76.5MB in the beginning and 126.4MB in the end (delta: -49.9MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/indp3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e95db6aea8df845f112e7d303c04ce64867bd2e800c9279283322a7440e1498c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:47:33,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:47:33,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:47:33,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:47:33,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:47:33,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:47:33,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:47:33,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:47:33,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:47:33,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:47:33,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:47:33,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:47:33,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:47:33,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:47:33,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:47:33,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:47:33,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:47:33,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:47:33,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:47:33,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:47:33,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:47:33,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:47:33,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:47:33,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:47:33,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:47:33,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:47:33,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:47:33,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:47:33,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:47:33,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:47:33,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:47:33,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:47:33,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:47:33,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:47:33,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:47:33,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:47:33,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:47:33,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:47:33,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:47:33,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:47:33,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:47:33,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-18 19:47:33,132 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:47:33,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:47:33,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:47:33,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:47:33,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:47:33,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:47:33,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:47:33,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:47:33,136 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:47:33,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:47:33,137 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:47:33,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:47:33,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:47:33,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:47:33,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:47:33,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:47:33,138 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:47:33,138 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 19:47:33,138 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 19:47:33,139 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:47:33,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:47:33,139 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:47:33,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:47:33,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:47:33,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:47:33,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:47:33,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:47:33,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:47:33,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:47:33,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:47:33,141 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 19:47:33,141 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 19:47:33,142 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:47:33,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:47:33,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:47:33,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 19:47:33,142 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e95db6aea8df845f112e7d303c04ce64867bd2e800c9279283322a7440e1498c [2022-11-18 19:47:33,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:47:33,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:47:33,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:47:33,547 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:47:33,548 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:47:33,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/array-fpi/indp3.c [2022-11-18 19:47:33,626 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/data/1fcc75270/55eec7bef9c3458983a8644f15bb8014/FLAG2b9bf02ba [2022-11-18 19:47:34,109 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:47:34,122 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/sv-benchmarks/c/array-fpi/indp3.c [2022-11-18 19:47:34,128 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/data/1fcc75270/55eec7bef9c3458983a8644f15bb8014/FLAG2b9bf02ba [2022-11-18 19:47:34,474 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/data/1fcc75270/55eec7bef9c3458983a8644f15bb8014 [2022-11-18 19:47:34,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:47:34,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:47:34,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:47:34,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:47:34,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:47:34,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:47:34" (1/1) ... [2022-11-18 19:47:34,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d57a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34, skipping insertion in model container [2022-11-18 19:47:34,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:47:34" (1/1) ... [2022-11-18 19:47:34,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:47:34,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:47:34,648 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/sv-benchmarks/c/array-fpi/indp3.c[588,601] [2022-11-18 19:47:34,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:47:34,690 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:47:34,745 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/sv-benchmarks/c/array-fpi/indp3.c[588,601] [2022-11-18 19:47:34,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:47:34,770 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:47:34,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34 WrapperNode [2022-11-18 19:47:34,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:47:34,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:47:34,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:47:34,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:47:34,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34" (1/1) ... [2022-11-18 19:47:34,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34" (1/1) ... [2022-11-18 19:47:34,812 INFO L138 Inliner]: procedures = 18, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2022-11-18 19:47:34,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:47:34,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:47:34,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:47:34,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:47:34,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34" (1/1) ... [2022-11-18 19:47:34,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34" (1/1) ... [2022-11-18 19:47:34,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34" (1/1) ... [2022-11-18 19:47:34,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34" (1/1) ... [2022-11-18 19:47:34,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34" (1/1) ... [2022-11-18 19:47:34,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34" (1/1) ... [2022-11-18 19:47:34,841 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34" (1/1) ... [2022-11-18 19:47:34,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34" (1/1) ... [2022-11-18 19:47:34,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:47:34,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:47:34,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:47:34,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:47:34,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34" (1/1) ... [2022-11-18 19:47:34,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:47:34,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:34,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:47:34,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:47:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:47:34,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 19:47:34,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-18 19:47:34,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:47:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:47:34,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:47:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-18 19:47:35,017 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:47:35,020 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:47:35,493 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:47:35,499 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:47:35,500 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-18 19:47:35,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:47:35 BoogieIcfgContainer [2022-11-18 19:47:35,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:47:35,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:47:35,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:47:35,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:47:35,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:47:34" (1/3) ... [2022-11-18 19:47:35,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136d1e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:47:35, skipping insertion in model container [2022-11-18 19:47:35,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:34" (2/3) ... [2022-11-18 19:47:35,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136d1e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:47:35, skipping insertion in model container [2022-11-18 19:47:35,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:47:35" (3/3) ... [2022-11-18 19:47:35,525 INFO L112 eAbstractionObserver]: Analyzing ICFG indp3.c [2022-11-18 19:47:35,547 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:47:35,547 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:47:35,606 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:47:35,614 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5da72d6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:47:35,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:47:35,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:35,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:47:35,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:35,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:35,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:47:35,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:35,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1389277550, now seen corresponding path program 1 times [2022-11-18 19:47:35,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:47:35,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88294408] [2022-11-18 19:47:35,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:35,649 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:47:35,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:47:35,658 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:47:35,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 19:47:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:35,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 19:47:35,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:35,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:35,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:47:35,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88294408] [2022-11-18 19:47:35,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88294408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:35,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:35,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:47:35,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423626582] [2022-11-18 19:47:35,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:35,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:47:35,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:47:35,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:47:35,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:47:35,941 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:35,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:35,967 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2022-11-18 19:47:35,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:47:35,970 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 19:47:35,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:35,978 INFO L225 Difference]: With dead ends: 50 [2022-11-18 19:47:35,979 INFO L226 Difference]: Without dead ends: 23 [2022-11-18 19:47:35,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:47:35,986 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:35,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:47:36,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-18 19:47:36,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-18 19:47:36,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:36,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-18 19:47:36,031 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2022-11-18 19:47:36,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:36,032 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-18 19:47:36,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:36,034 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-18 19:47:36,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:47:36,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:36,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:36,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:36,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:47:36,249 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:47:36,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:36,249 INFO L85 PathProgramCache]: Analyzing trace with hash 796930410, now seen corresponding path program 1 times [2022-11-18 19:47:36,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:47:36,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526480119] [2022-11-18 19:47:36,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:36,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:47:36,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:47:36,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:47:36,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 19:47:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:36,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:47:36,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:36,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:36,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:36,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:47:36,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526480119] [2022-11-18 19:47:36,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526480119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:36,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:36,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:47:36,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826165038] [2022-11-18 19:47:36,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:36,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:47:36,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:47:36,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:47:36,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:47:36,552 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:37,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:37,101 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2022-11-18 19:47:37,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:47:37,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 19:47:37,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:37,110 INFO L225 Difference]: With dead ends: 53 [2022-11-18 19:47:37,111 INFO L226 Difference]: Without dead ends: 37 [2022-11-18 19:47:37,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:47:37,112 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 84 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:37,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 15 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:47:37,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-18 19:47:37,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2022-11-18 19:47:37,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:37,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-11-18 19:47:37,124 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2022-11-18 19:47:37,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:37,124 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-11-18 19:47:37,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:37,125 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-18 19:47:37,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 19:47:37,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:37,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:37,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:37,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:47:37,340 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:47:37,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:37,340 INFO L85 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2022-11-18 19:47:37,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:47:37,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019329407] [2022-11-18 19:47:37,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:37,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:47:37,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:47:37,343 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:47:37,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29df0814-8339-4200-97eb-e833a8790fad/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 19:47:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:37,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 19:47:37,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:37,758 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 17 [2022-11-18 19:47:37,901 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:47:37,902 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 59 treesize of output 29 [2022-11-18 19:47:37,999 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:47:37,999 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 59 treesize of output 29 [2022-11-18 19:47:38,074 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:47:38,075 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 63 treesize of output 33 [2022-11-18 19:47:38,225 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:47:38,226 INFO L350 Elim1Store]: Elim1 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 67 treesize of output 37 [2022-11-18 19:47:38,260 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:38,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:47:40,675 INFO L350 Elim1Store]: Elim1 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 40 treesize of output 38 [2022-11-18 19:47:40,681 INFO L350 Elim1Store]: Elim1 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 85 treesize of output 81 [2022-11-18 19:47:41,260 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 36 [2022-11-18 19:47:41,360 INFO L350 Elim1Store]: Elim1 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 194 treesize of output 190 [2022-11-18 19:47:43,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:43,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:47:43,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019329407] [2022-11-18 19:47:43,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019329407] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:47:43,108 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:47:43,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2022-11-18 19:47:43,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342957857] [2022-11-18 19:47:43,108 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:47:43,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:47:43,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:47:43,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:47:43,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:47:43,110 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:45,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:47:51,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:47:53,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []