./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/eqn1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/eqn1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a --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 14bc2dbf7c29b1d0f6a0a1f7aa323adbc9855e56ce7f667c86a31ecee97dcbe0 --- 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-b5237d8 [2022-11-21 16:45:32,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:45:32,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:45:32,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:45:32,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:45:32,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:45:32,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:45:32,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:45:32,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:45:32,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:45:32,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:45:32,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:45:32,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:45:32,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:45:32,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:45:32,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:45:32,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:45:33,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:45:33,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:45:33,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:45:33,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:45:33,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:45:33,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:45:33,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:45:33,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:45:33,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:45:33,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:45:33,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:45:33,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:45:33,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:45:33,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:45:33,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:45:33,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:45:33,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:45:33,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:45:33,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:45:33,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:45:33,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:45:33,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:45:33,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:45:33,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:45:33,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:45:33,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:45:33,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:45:33,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:45:33,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:45:33,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:45:33,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:45:33,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:45:33,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:45:33,090 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:45:33,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:45:33,091 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:45:33,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:45:33,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:45:33,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:45:33,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:45:33,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:45:33,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:45:33,093 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:45:33,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:45:33,093 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:45:33,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:45:33,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:45:33,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:45:33,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:45:33,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:45:33,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:45:33,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:45:33,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:45:33,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:45:33,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:45:33,097 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:45:33,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:45:33,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:45:33,098 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_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14bc2dbf7c29b1d0f6a0a1f7aa323adbc9855e56ce7f667c86a31ecee97dcbe0 [2022-11-21 16:45:33,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:45:33,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:45:33,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:45:33,503 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:45:33,504 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:45:33,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/array-fpi/eqn1.c [2022-11-21 16:45:36,557 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:45:36,771 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:45:36,771 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/sv-benchmarks/c/array-fpi/eqn1.c [2022-11-21 16:45:36,778 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/data/7ab9bb210/1266b9fde13a47ecb5bbf04ae9ef1d6c/FLAGb84074cc3 [2022-11-21 16:45:36,793 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/data/7ab9bb210/1266b9fde13a47ecb5bbf04ae9ef1d6c [2022-11-21 16:45:36,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:45:36,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:45:36,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:45:36,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:45:36,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:45:36,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:45:36" (1/1) ... [2022-11-21 16:45:36,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c33dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:36, skipping insertion in model container [2022-11-21 16:45:36,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:45:36" (1/1) ... [2022-11-21 16:45:36,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:45:36,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:45:37,036 WARN L237 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_63a51051-bb7c-4775-ad55-d61b38c26ebc/sv-benchmarks/c/array-fpi/eqn1.c[587,600] [2022-11-21 16:45:37,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:45:37,067 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:45:37,080 WARN L237 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_63a51051-bb7c-4775-ad55-d61b38c26ebc/sv-benchmarks/c/array-fpi/eqn1.c[587,600] [2022-11-21 16:45:37,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:45:37,102 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:45:37,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:37 WrapperNode [2022-11-21 16:45:37,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:45:37,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:45:37,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:45:37,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:45:37,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:37" (1/1) ... [2022-11-21 16:45:37,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:37" (1/1) ... [2022-11-21 16:45:37,141 INFO L138 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2022-11-21 16:45:37,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:45:37,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:45:37,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:45:37,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:45:37,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:37" (1/1) ... [2022-11-21 16:45:37,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:37" (1/1) ... [2022-11-21 16:45:37,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:37" (1/1) ... [2022-11-21 16:45:37,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:37" (1/1) ... [2022-11-21 16:45:37,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:37" (1/1) ... [2022-11-21 16:45:37,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:37" (1/1) ... [2022-11-21 16:45:37,166 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:37" (1/1) ... [2022-11-21 16:45:37,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:37" (1/1) ... [2022-11-21 16:45:37,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:45:37,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:45:37,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:45:37,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:45:37,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:37" (1/1) ... [2022-11-21 16:45:37,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:45:37,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:37,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:45:37,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:45:37,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:45:37,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:45:37,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:45:37,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:45:37,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:45:37,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:45:37,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:45:37,344 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:45:37,348 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:45:37,602 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:45:37,608 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:45:37,609 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 16:45:37,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:45:37 BoogieIcfgContainer [2022-11-21 16:45:37,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:45:37,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:45:37,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:45:37,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:45:37,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:45:36" (1/3) ... [2022-11-21 16:45:37,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bf772b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:45:37, skipping insertion in model container [2022-11-21 16:45:37,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:45:37" (2/3) ... [2022-11-21 16:45:37,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bf772b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:45:37, skipping insertion in model container [2022-11-21 16:45:37,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:45:37" (3/3) ... [2022-11-21 16:45:37,622 INFO L112 eAbstractionObserver]: Analyzing ICFG eqn1.c [2022-11-21 16:45:37,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:45:37,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:45:37,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:45:37,750 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;@19535a89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:45:37,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:45:37,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:37,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:45:37,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:45:37,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:45:37,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:45:37,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:37,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1828546148, now seen corresponding path program 1 times [2022-11-21 16:45:37,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:37,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78250689] [2022-11-21 16:45:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:37,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:45:37,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:37,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78250689] [2022-11-21 16:45:37,987 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-21 16:45:37,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796394249] [2022-11-21 16:45:37,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:37,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:37,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:37,992 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:45:38,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:45:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:45:38,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 16:45:38,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:45:38,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:38,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:45:38,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796394249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:45:38,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:45:38,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:45:38,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021478311] [2022-11-21 16:45:38,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:45:38,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:45:38,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:38,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:45:38,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:45:38,176 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-21 16:45:38,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:45:38,199 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2022-11-21 16:45:38,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:45:38,201 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-11-21 16:45:38,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:45:38,207 INFO L225 Difference]: With dead ends: 38 [2022-11-21 16:45:38,207 INFO L226 Difference]: Without dead ends: 17 [2022-11-21 16:45:38,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:45:38,213 INFO L413 NwaCegarLoop]: 24 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, 24 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 [2022-11-21 16:45:38,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:45:38,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-21 16:45:38,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-21 16:45:38,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:38,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-21 16:45:38,247 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2022-11-21 16:45:38,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:45:38,248 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-21 16:45:38,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-21 16:45:38,248 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-21 16:45:38,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:45:38,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:45:38,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:45:38,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:45:38,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-21 16:45:38,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:45:38,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:38,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1148487778, now seen corresponding path program 1 times [2022-11-21 16:45:38,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:38,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088262227] [2022-11-21 16:45:38,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:38,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:38,484 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:45:38,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1475409392] [2022-11-21 16:45:38,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:38,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:38,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:38,487 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:45:38,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:45:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:45:38,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-21 16:45:38,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:45:38,748 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-21 16:45:38,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-21 16:45:38,762 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 8 treesize of output 7 [2022-11-21 16:45:38,776 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 8 treesize of output 7 [2022-11-21 16:45:38,892 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 5 treesize of output 3 [2022-11-21 16:45:38,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:38,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:45:38,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:38,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088262227] [2022-11-21 16:45:38,973 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:45:38,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475409392] [2022-11-21 16:45:38,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475409392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:45:38,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:45:38,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:45:38,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363111506] [2022-11-21 16:45:38,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:45:38,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:45:38,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:38,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:45:38,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:45:38,977 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-21 16:45:39,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:45:39,071 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-11-21 16:45:39,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:45:39,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-11-21 16:45:39,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:45:39,073 INFO L225 Difference]: With dead ends: 34 [2022-11-21 16:45:39,073 INFO L226 Difference]: Without dead ends: 32 [2022-11-21 16:45:39,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:45:39,075 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 15 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:45:39,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 56 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:45:39,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-21 16:45:39,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2022-11-21 16:45:39,096 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) [2022-11-21 16:45:39,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-21 16:45:39,110 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2022-11-21 16:45:39,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:45:39,110 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-21 16:45:39,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-21 16:45:39,111 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-21 16:45:39,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 16:45:39,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:45:39,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:45:39,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-21 16:45:39,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-21 16:45:39,312 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:45:39,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:39,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1755224028, now seen corresponding path program 1 times [2022-11-21 16:45:39,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:39,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523293899] [2022-11-21 16:45:39,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:39,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:39,355 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:45:39,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510583492] [2022-11-21 16:45:39,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:39,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:39,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:39,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:45:39,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 16:45:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:45:39,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:45:39,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:45:39,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:39,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:45:39,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:39,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523293899] [2022-11-21 16:45:39,483 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:45:39,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510583492] [2022-11-21 16:45:39,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510583492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:45:39,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:45:39,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:45:39,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196501782] [2022-11-21 16:45:39,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:45:39,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:45:39,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:39,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:45:39,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:45:39,486 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:39,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:45:39,572 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2022-11-21 16:45:39,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:45:39,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-21 16:45:39,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:45:39,574 INFO L225 Difference]: With dead ends: 49 [2022-11-21 16:45:39,574 INFO L226 Difference]: Without dead ends: 40 [2022-11-21 16:45:39,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:45:39,576 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 27 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:45:39,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 29 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:45:39,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-21 16:45:39,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 23. [2022-11-21 16:45:39,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:39,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-11-21 16:45:39,583 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2022-11-21 16:45:39,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:45:39,584 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-11-21 16:45:39,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:39,584 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-11-21 16:45:39,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 16:45:39,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:45:39,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:45:39,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:45:39,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:39,791 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:45:39,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:39,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1842440164, now seen corresponding path program 1 times [2022-11-21 16:45:39,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:39,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319812455] [2022-11-21 16:45:39,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:39,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:39,838 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:45:39,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959536830] [2022-11-21 16:45:39,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:39,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:39,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:39,841 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:45:39,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 16:45:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:45:39,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:45:39,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:45:39,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:39,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:45:40,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:40,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:40,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319812455] [2022-11-21 16:45:40,035 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:45:40,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959536830] [2022-11-21 16:45:40,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959536830] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:45:40,038 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:45:40,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2022-11-21 16:45:40,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990494758] [2022-11-21 16:45:40,038 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:45:40,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:45:40,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:40,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:45:40,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:45:40,042 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2022-11-21 16:45:40,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:45:40,155 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2022-11-21 16:45:40,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:45:40,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 14 [2022-11-21 16:45:40,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:45:40,156 INFO L225 Difference]: With dead ends: 44 [2022-11-21 16:45:40,156 INFO L226 Difference]: Without dead ends: 37 [2022-11-21 16:45:40,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:45:40,158 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 35 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:45:40,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 41 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:45:40,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-21 16:45:40,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 24. [2022-11-21 16:45:40,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:40,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-21 16:45:40,164 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 14 [2022-11-21 16:45:40,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:45:40,164 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-21 16:45:40,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2022-11-21 16:45:40,165 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-11-21 16:45:40,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 16:45:40,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:45:40,166 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:45:40,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:45:40,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:40,372 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:45:40,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:40,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1667884396, now seen corresponding path program 1 times [2022-11-21 16:45:40,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:40,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294461808] [2022-11-21 16:45:40,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:40,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:40,394 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:45:40,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440826798] [2022-11-21 16:45:40,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:40,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:40,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:40,396 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:45:40,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 16:45:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:45:40,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:45:40,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:45:40,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:40,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:45:40,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:40,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294461808] [2022-11-21 16:45:40,549 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:45:40,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440826798] [2022-11-21 16:45:40,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440826798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:45:40,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:45:40,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:45:40,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365596977] [2022-11-21 16:45:40,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:45:40,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:45:40,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:40,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:45:40,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:45:40,552 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2022-11-21 16:45:40,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:45:40,642 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2022-11-21 16:45:40,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:45:40,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 [2022-11-21 16:45:40,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:45:40,645 INFO L225 Difference]: With dead ends: 41 [2022-11-21 16:45:40,645 INFO L226 Difference]: Without dead ends: 27 [2022-11-21 16:45:40,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:45:40,646 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:45:40,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 27 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:45:40,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-21 16:45:40,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2022-11-21 16:45:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-21 16:45:40,651 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2022-11-21 16:45:40,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:45:40,652 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-21 16:45:40,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2022-11-21 16:45:40,653 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-21 16:45:40,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 16:45:40,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:45:40,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:45:40,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:45:40,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:40,860 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:45:40,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:40,860 INFO L85 PathProgramCache]: Analyzing trace with hash 586911962, now seen corresponding path program 1 times [2022-11-21 16:45:40,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:40,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970002910] [2022-11-21 16:45:40,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:40,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:40,912 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:45:40,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [577881840] [2022-11-21 16:45:40,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:40,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:40,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:40,931 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:45:40,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 16:45:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:45:41,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-21 16:45:41,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:45:41,068 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 10 treesize of output 8 [2022-11-21 16:45:41,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:41,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-21 16:45:41,079 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 8 treesize of output 7 [2022-11-21 16:45:41,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-21 16:45:41,138 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 [2022-11-21 16:45:41,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:41,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:45:41,466 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_159 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_159) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) is different from false [2022-11-21 16:45:41,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-21 16:45:41,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:41,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970002910] [2022-11-21 16:45:41,488 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:45:41,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577881840] [2022-11-21 16:45:41,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577881840] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:45:41,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:45:41,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-21 16:45:41,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434475593] [2022-11-21 16:45:41,489 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:45:41,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:45:41,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:41,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:45:41,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=67, Unknown=1, NotChecked=16, Total=110 [2022-11-21 16:45:41,491 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:41,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:45:41,889 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2022-11-21 16:45:41,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 16:45:41,890 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-21 16:45:41,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:45:41,891 INFO L225 Difference]: With dead ends: 54 [2022-11-21 16:45:41,891 INFO L226 Difference]: Without dead ends: 52 [2022-11-21 16:45:41,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=243, Unknown=1, NotChecked=34, Total=380 [2022-11-21 16:45:41,893 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 71 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:45:41,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 61 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 82 Invalid, 0 Unknown, 33 Unchecked, 0.2s Time] [2022-11-21 16:45:41,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-21 16:45:41,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 26. [2022-11-21 16:45:41,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 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) [2022-11-21 16:45:41,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-11-21 16:45:41,901 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 16 [2022-11-21 16:45:41,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:45:41,901 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-11-21 16:45:41,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:41,902 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-11-21 16:45:41,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 16:45:41,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:45:41,903 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:45:41,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 16:45:42,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:42,109 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:45:42,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:42,110 INFO L85 PathProgramCache]: Analyzing trace with hash 798963152, now seen corresponding path program 1 times [2022-11-21 16:45:42,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:42,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102677802] [2022-11-21 16:45:42,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:42,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:42,166 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:45:42,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372258968] [2022-11-21 16:45:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:42,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:42,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:42,169 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:45:42,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 16:45:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:45:42,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-21 16:45:42,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:45:42,314 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 10 treesize of output 8 [2022-11-21 16:45:42,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:42,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-21 16:45:42,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2022-11-21 16:45:42,335 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 8 treesize of output 7 [2022-11-21 16:45:42,342 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 8 treesize of output 7 [2022-11-21 16:45:42,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:42,387 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 16:45:42,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-11-21 16:45:42,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:42,458 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 16:45:42,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 32 [2022-11-21 16:45:42,698 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-21 16:45:42,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 32 [2022-11-21 16:45:42,711 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:42,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:45:43,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:43,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:43,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102677802] [2022-11-21 16:45:43,455 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:45:43,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372258968] [2022-11-21 16:45:43,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372258968] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:45:43,456 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:45:43,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2022-11-21 16:45:43,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793403674] [2022-11-21 16:45:43,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:45:43,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-21 16:45:43,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:43,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-21 16:45:43,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-21 16:45:43,458 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 17 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) [2022-11-21 16:45:46,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:45:46,658 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2022-11-21 16:45:46,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-21 16:45:46,659 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 17 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 20 [2022-11-21 16:45:46,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:45:46,660 INFO L225 Difference]: With dead ends: 82 [2022-11-21 16:45:46,660 INFO L226 Difference]: Without dead ends: 80 [2022-11-21 16:45:46,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=291, Invalid=1041, Unknown=0, NotChecked=0, Total=1332 [2022-11-21 16:45:46,661 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 165 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:45:46,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 108 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:45:46,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-21 16:45:46,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 46. [2022-11-21 16:45:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 45 states have internal predecessors, (56), 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) [2022-11-21 16:45:46,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2022-11-21 16:45:46,690 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 20 [2022-11-21 16:45:46,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:45:46,690 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2022-11-21 16:45:46,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 17 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) [2022-11-21 16:45:46,691 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2022-11-21 16:45:46,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 16:45:46,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:45:46,693 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:45:46,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 16:45:46,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:46,900 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:45:46,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:46,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1334592554, now seen corresponding path program 2 times [2022-11-21 16:45:46,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:46,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659954884] [2022-11-21 16:45:46,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:46,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:46,933 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:45:46,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [275253193] [2022-11-21 16:45:46,933 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:45:46,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:46,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:46,935 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:45:46,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 16:45:47,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:45:47,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:45:47,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:45:47,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:45:47,090 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:45:47,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:45:47,129 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:45:47,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:47,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659954884] [2022-11-21 16:45:47,130 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:45:47,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275253193] [2022-11-21 16:45:47,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275253193] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:45:47,130 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:45:47,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-21 16:45:47,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141809709] [2022-11-21 16:45:47,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:45:47,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:45:47,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:47,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:45:47,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:45:47,133 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:47,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:45:47,299 INFO L93 Difference]: Finished difference Result 103 states and 118 transitions. [2022-11-21 16:45:47,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 16:45:47,300 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-21 16:45:47,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:45:47,301 INFO L225 Difference]: With dead ends: 103 [2022-11-21 16:45:47,301 INFO L226 Difference]: Without dead ends: 80 [2022-11-21 16:45:47,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:45:47,302 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 34 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:45:47,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 59 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:45:47,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-21 16:45:47,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 50. [2022-11-21 16:45:47,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 49 states have internal predecessors, (60), 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) [2022-11-21 16:45:47,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-11-21 16:45:47,316 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 20 [2022-11-21 16:45:47,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:45:47,316 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-11-21 16:45:47,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:47,317 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-11-21 16:45:47,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-21 16:45:47,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:45:47,318 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:45:47,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-21 16:45:47,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-21 16:45:47,525 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:45:47,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:47,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1146782124, now seen corresponding path program 3 times [2022-11-21 16:45:47,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:47,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263491280] [2022-11-21 16:45:47,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:47,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:47,576 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:45:47,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [471490651] [2022-11-21 16:45:47,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 16:45:47,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:47,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:47,586 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:45:47,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-21 16:45:47,813 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-21 16:45:47,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:45:47,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 16:45:47,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:45:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:47,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:45:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:47,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:47,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263491280] [2022-11-21 16:45:47,966 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:45:47,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471490651] [2022-11-21 16:45:47,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471490651] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:45:47,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:45:47,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-21 16:45:47,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670101634] [2022-11-21 16:45:47,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:45:47,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:45:47,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:47,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:45:47,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:45:47,971 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:48,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:45:48,294 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2022-11-21 16:45:48,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 16:45:48,295 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-21 16:45:48,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:45:48,296 INFO L225 Difference]: With dead ends: 113 [2022-11-21 16:45:48,296 INFO L226 Difference]: Without dead ends: 81 [2022-11-21 16:45:48,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-11-21 16:45:48,297 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 156 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:45:48,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 65 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:45:48,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-21 16:45:48,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 48. [2022-11-21 16:45:48,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.127659574468085) internal successors, (53), 47 states have internal predecessors, (53), 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) [2022-11-21 16:45:48,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2022-11-21 16:45:48,310 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 22 [2022-11-21 16:45:48,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:45:48,311 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2022-11-21 16:45:48,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:48,311 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-11-21 16:45:48,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 16:45:48,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:45:48,312 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:45:48,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-21 16:45:48,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:48,519 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:45:48,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:48,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1083970380, now seen corresponding path program 2 times [2022-11-21 16:45:48,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:48,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104356804] [2022-11-21 16:45:48,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:48,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:48,570 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:45:48,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1514876778] [2022-11-21 16:45:48,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:45:48,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:48,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:48,573 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:45:48,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-21 16:45:48,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:45:48,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:45:48,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:45:48,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:45:48,749 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 16:45:48,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:45:48,803 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 16:45:48,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:48,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104356804] [2022-11-21 16:45:48,804 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:45:48,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514876778] [2022-11-21 16:45:48,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514876778] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:45:48,805 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:45:48,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-21 16:45:48,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384794746] [2022-11-21 16:45:48,806 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:45:48,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:45:48,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:48,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:45:48,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:45:48,809 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:48,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:45:48,953 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2022-11-21 16:45:48,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 16:45:48,953 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-21 16:45:48,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:45:48,953 INFO L225 Difference]: With dead ends: 64 [2022-11-21 16:45:48,954 INFO L226 Difference]: Without dead ends: 55 [2022-11-21 16:45:48,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:45:48,955 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 54 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:45:48,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 39 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:45:48,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-21 16:45:48,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 41. [2022-11-21 16:45:48,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.125) internal successors, (45), 40 states have internal predecessors, (45), 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) [2022-11-21 16:45:48,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-11-21 16:45:48,972 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 24 [2022-11-21 16:45:48,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:45:48,972 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-11-21 16:45:48,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:48,973 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-11-21 16:45:48,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 16:45:48,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:45:48,974 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:45:48,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-21 16:45:49,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:49,182 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:45:49,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:49,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1049585326, now seen corresponding path program 4 times [2022-11-21 16:45:49,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:49,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857714752] [2022-11-21 16:45:49,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:49,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:49,213 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:45:49,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2118152318] [2022-11-21 16:45:49,213 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 16:45:49,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:49,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:49,219 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:45:49,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-21 16:45:49,817 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 16:45:49,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:45:49,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-21 16:45:49,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:45:49,830 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 10 treesize of output 8 [2022-11-21 16:45:49,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:49,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-21 16:45:49,841 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 8 treesize of output 7 [2022-11-21 16:45:49,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-21 16:45:49,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-21 16:45:49,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-21 16:45:49,988 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 [2022-11-21 16:45:49,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:49,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:49,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2022-11-21 16:45:50,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:50,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:50,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 24 [2022-11-21 16:45:50,062 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 [2022-11-21 16:45:50,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:50,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:50,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2022-11-21 16:45:50,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:50,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:50,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 17 [2022-11-21 16:45:50,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:50,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-21 16:45:50,173 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:50,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:45:50,799 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_375 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_375) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) is different from false [2022-11-21 16:45:50,820 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 5 not checked. [2022-11-21 16:45:50,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:50,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857714752] [2022-11-21 16:45:50,821 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:45:50,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118152318] [2022-11-21 16:45:50,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118152318] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:45:50,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:45:50,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2022-11-21 16:45:50,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138009836] [2022-11-21 16:45:50,822 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:45:50,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-21 16:45:50,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:50,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-21 16:45:50,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=248, Unknown=1, NotChecked=34, Total=380 [2022-11-21 16:45:50,823 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 20 states, 20 states have (on average 2.05) internal successors, (41), 20 states have internal predecessors, (41), 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) [2022-11-21 16:45:52,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:45:52,126 INFO L93 Difference]: Finished difference Result 114 states and 125 transitions. [2022-11-21 16:45:52,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:45:52,126 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.05) internal successors, (41), 20 states have internal predecessors, (41), 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 [2022-11-21 16:45:52,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:45:52,128 INFO L225 Difference]: With dead ends: 114 [2022-11-21 16:45:52,128 INFO L226 Difference]: Without dead ends: 112 [2022-11-21 16:45:52,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 29 SyntacticMatches, 6 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=293, Invalid=766, Unknown=1, NotChecked=62, Total=1122 [2022-11-21 16:45:52,130 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 253 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:45:52,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 142 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 234 Invalid, 0 Unknown, 53 Unchecked, 0.7s Time] [2022-11-21 16:45:52,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-21 16:45:52,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 49. [2022-11-21 16:45:52,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.1875) internal successors, (57), 48 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:45:52,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2022-11-21 16:45:52,144 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 24 [2022-11-21 16:45:52,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:45:52,144 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2022-11-21 16:45:52,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.05) internal successors, (41), 20 states have internal predecessors, (41), 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) [2022-11-21 16:45:52,145 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2022-11-21 16:45:52,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 16:45:52,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:45:52,145 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:45:52,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-21 16:45:52,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:52,359 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:45:52,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:52,359 INFO L85 PathProgramCache]: Analyzing trace with hash 149788298, now seen corresponding path program 3 times [2022-11-21 16:45:52,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:52,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915156856] [2022-11-21 16:45:52,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:52,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:52,399 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:45:52,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143414364] [2022-11-21 16:45:52,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 16:45:52,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:52,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:52,419 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:45:52,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-21 16:45:52,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-21 16:45:52,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:45:52,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 16:45:52,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:45:52,693 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:45:52,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:45:52,752 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:45:52,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:52,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915156856] [2022-11-21 16:45:52,753 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:45:52,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143414364] [2022-11-21 16:45:52,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143414364] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:45:52,753 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:45:52,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-21 16:45:52,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820398107] [2022-11-21 16:45:52,754 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:45:52,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:45:52,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:52,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:45:52,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:45:52,755 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 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) [2022-11-21 16:45:53,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:45:53,017 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2022-11-21 16:45:53,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 16:45:53,018 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 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 26 [2022-11-21 16:45:53,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:45:53,018 INFO L225 Difference]: With dead ends: 84 [2022-11-21 16:45:53,018 INFO L226 Difference]: Without dead ends: 75 [2022-11-21 16:45:53,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:45:53,020 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 70 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:45:53,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 66 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:45:53,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-21 16:45:53,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 49. [2022-11-21 16:45:53,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 48 states have internal predecessors, (56), 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) [2022-11-21 16:45:53,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2022-11-21 16:45:53,032 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 26 [2022-11-21 16:45:53,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:45:53,033 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2022-11-21 16:45:53,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 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) [2022-11-21 16:45:53,033 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2022-11-21 16:45:53,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-21 16:45:53,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:45:53,034 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:45:53,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-21 16:45:53,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:53,244 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:45:53,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:53,245 INFO L85 PathProgramCache]: Analyzing trace with hash -55017726, now seen corresponding path program 4 times [2022-11-21 16:45:53,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:53,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911604287] [2022-11-21 16:45:53,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:53,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:53,264 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:45:53,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342604370] [2022-11-21 16:45:53,264 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 16:45:53,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:45:53,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:45:53,266 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:45:53,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-21 16:45:53,541 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 16:45:53,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:45:53,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-21 16:45:53,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:45:53,574 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-21 16:45:53,574 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-11-21 16:45:53,578 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-21 16:45:53,622 INFO L321 Elim1Store]: treesize reduction 32, result has 36.0 percent of original size [2022-11-21 16:45:53,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 43 treesize of output 68 [2022-11-21 16:45:53,645 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 8 treesize of output 7 [2022-11-21 16:45:53,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-21 16:45:53,670 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 5 treesize of output 3 [2022-11-21 16:45:53,678 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 0 case distinctions, treesize of input 34 treesize of output 51 [2022-11-21 16:45:53,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 16:45:53,746 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 16:45:53,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-21 16:45:53,781 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 5 treesize of output 3 [2022-11-21 16:45:53,815 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 10 treesize of output 8 [2022-11-21 16:45:53,897 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 16:45:53,897 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 2 case distinctions, treesize of input 117 treesize of output 109 [2022-11-21 16:45:53,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 16:45:53,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:53,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:53,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:53,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 172 [2022-11-21 16:45:53,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:53,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 37 [2022-11-21 16:45:54,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:54,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:54,042 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 16:45:54,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 44 [2022-11-21 16:45:54,173 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 16:45:54,174 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 2 case distinctions, treesize of input 175 treesize of output 159 [2022-11-21 16:45:54,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 16:45:54,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:54,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:54,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:54,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:54,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 197 [2022-11-21 16:45:54,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:54,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:54,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 16:45:54,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:45:54,410 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-21 16:45:54,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 58 [2022-11-21 16:45:54,796 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-11-21 16:45:54,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 43 [2022-11-21 16:45:54,815 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:54,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:46:10,077 WARN L233 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 139 DAG size of output: 107 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:46:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:46:10,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:46:10,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911604287] [2022-11-21 16:46:10,092 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:46:10,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342604370] [2022-11-21 16:46:10,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342604370] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:46:10,093 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:46:10,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 25 [2022-11-21 16:46:10,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29748429] [2022-11-21 16:46:10,093 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:46:10,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-21 16:46:10,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:46:10,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-21 16:46:10,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=501, Unknown=1, NotChecked=0, Total=600 [2022-11-21 16:46:10,095 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 25 states, 25 states have (on average 2.04) internal successors, (51), 25 states have internal predecessors, (51), 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) [2022-11-21 16:46:29,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2022-11-21 16:46:38,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:46:38,189 INFO L93 Difference]: Finished difference Result 128 states and 143 transitions. [2022-11-21 16:46:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-21 16:46:38,190 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.04) internal successors, (51), 25 states have internal predecessors, (51), 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 [2022-11-21 16:46:38,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:46:38,191 INFO L225 Difference]: With dead ends: 128 [2022-11-21 16:46:38,191 INFO L226 Difference]: Without dead ends: 126 [2022-11-21 16:46:38,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 33.4s TimeCoverageRelationStatistics Valid=449, Invalid=1902, Unknown=1, NotChecked=0, Total=2352 [2022-11-21 16:46:38,193 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 261 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 100 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:46:38,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 194 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2022-11-21 16:46:38,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-21 16:46:38,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 78. [2022-11-21 16:46:38,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 77 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) [2022-11-21 16:46:38,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 92 transitions. [2022-11-21 16:46:38,221 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 92 transitions. Word has length 28 [2022-11-21 16:46:38,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:46:38,221 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 92 transitions. [2022-11-21 16:46:38,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.04) internal successors, (51), 25 states have internal predecessors, (51), 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) [2022-11-21 16:46:38,222 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 92 transitions. [2022-11-21 16:46:38,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-21 16:46:38,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:46:38,223 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:46:38,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-21 16:46:38,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-21 16:46:38,430 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:46:38,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:46:38,430 INFO L85 PathProgramCache]: Analyzing trace with hash -412561416, now seen corresponding path program 5 times [2022-11-21 16:46:38,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:46:38,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295942473] [2022-11-21 16:46:38,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:46:38,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:46:38,467 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:46:38,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1967683298] [2022-11-21 16:46:38,470 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-21 16:46:38,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:46:38,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:46:38,472 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:46:38,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-21 16:46:44,907 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-11-21 16:46:44,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:46:44,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-21 16:46:44,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:46:45,065 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 16:46:45,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:46:45,192 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 16:46:45,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:46:45,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295942473] [2022-11-21 16:46:45,193 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:46:45,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967683298] [2022-11-21 16:46:45,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967683298] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:46:45,193 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:46:45,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2022-11-21 16:46:45,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333169576] [2022-11-21 16:46:45,194 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:46:45,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 16:46:45,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:46:45,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 16:46:45,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:46:45,195 INFO L87 Difference]: Start difference. First operand 78 states and 92 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:46:45,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:46:45,489 INFO L93 Difference]: Finished difference Result 118 states and 132 transitions. [2022-11-21 16:46:45,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 16:46:45,489 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-21 16:46:45,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:46:45,490 INFO L225 Difference]: With dead ends: 118 [2022-11-21 16:46:45,490 INFO L226 Difference]: Without dead ends: 92 [2022-11-21 16:46:45,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2022-11-21 16:46:45,492 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 56 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:46:45,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 84 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:46:45,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-21 16:46:45,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 72. [2022-11-21 16:46:45,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.1971830985915493) internal successors, (85), 71 states have internal predecessors, (85), 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) [2022-11-21 16:46:45,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 85 transitions. [2022-11-21 16:46:45,531 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 85 transitions. Word has length 32 [2022-11-21 16:46:45,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:46:45,532 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 85 transitions. [2022-11-21 16:46:45,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:46:45,532 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 85 transitions. [2022-11-21 16:46:45,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-21 16:46:45,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:46:45,539 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:46:45,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-21 16:46:45,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-21 16:46:45,748 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:46:45,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:46:45,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1680698556, now seen corresponding path program 6 times [2022-11-21 16:46:45,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:46:45,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345515974] [2022-11-21 16:46:45,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:46:45,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:46:45,792 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:46:45,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43665455] [2022-11-21 16:46:45,792 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-21 16:46:45,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:46:45,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:46:45,794 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:46:45,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-21 16:46:46,331 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2022-11-21 16:46:46,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:46:46,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-21 16:46:46,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:46:46,454 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:46:46,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:46:46,584 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:46:46,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:46:46,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345515974] [2022-11-21 16:46:46,584 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:46:46,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43665455] [2022-11-21 16:46:46,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43665455] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:46:46,585 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:46:46,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2022-11-21 16:46:46,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895383158] [2022-11-21 16:46:46,585 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:46:46,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-21 16:46:46,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:46:46,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-21 16:46:46,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:46:46,586 INFO L87 Difference]: Start difference. First operand 72 states and 85 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 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) [2022-11-21 16:46:47,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:46:47,206 INFO L93 Difference]: Finished difference Result 195 states and 211 transitions. [2022-11-21 16:46:47,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-21 16:46:47,207 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 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 32 [2022-11-21 16:46:47,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:46:47,208 INFO L225 Difference]: With dead ends: 195 [2022-11-21 16:46:47,208 INFO L226 Difference]: Without dead ends: 159 [2022-11-21 16:46:47,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=372, Invalid=1110, Unknown=0, NotChecked=0, Total=1482 [2022-11-21 16:46:47,210 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 252 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:46:47,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 134 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:46:47,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-21 16:46:47,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 95. [2022-11-21 16:46:47,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.127659574468085) internal successors, (106), 94 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) [2022-11-21 16:46:47,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 106 transitions. [2022-11-21 16:46:47,242 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 106 transitions. Word has length 32 [2022-11-21 16:46:47,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:46:47,242 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 106 transitions. [2022-11-21 16:46:47,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 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) [2022-11-21 16:46:47,242 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 106 transitions. [2022-11-21 16:46:47,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-21 16:46:47,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:46:47,243 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:46:47,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-21 16:46:47,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-21 16:46:47,450 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:46:47,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:46:47,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1021371332, now seen corresponding path program 7 times [2022-11-21 16:46:47,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:46:47,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37331053] [2022-11-21 16:46:47,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:46:47,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:46:47,476 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:46:47,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625729159] [2022-11-21 16:46:47,476 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-21 16:46:47,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:46:47,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:46:47,478 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:46:47,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-21 16:46:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:46:47,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-21 16:46:47,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:46:47,708 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:46:47,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:46:47,818 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:46:47,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:46:47,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37331053] [2022-11-21 16:46:47,819 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:46:47,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625729159] [2022-11-21 16:46:47,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625729159] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:46:47,819 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:46:47,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2022-11-21 16:46:47,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339186554] [2022-11-21 16:46:47,819 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:46:47,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:46:47,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:46:47,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:46:47,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:46:47,821 INFO L87 Difference]: Start difference. First operand 95 states and 106 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 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) [2022-11-21 16:46:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:46:48,657 INFO L93 Difference]: Finished difference Result 168 states and 178 transitions. [2022-11-21 16:46:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-21 16:46:48,658 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 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 32 [2022-11-21 16:46:48,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:46:48,659 INFO L225 Difference]: With dead ends: 168 [2022-11-21 16:46:48,659 INFO L226 Difference]: Without dead ends: 133 [2022-11-21 16:46:48,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-11-21 16:46:48,660 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 179 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:46:48,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 236 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:46:48,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-21 16:46:48,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 84. [2022-11-21 16:46:48,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.0843373493975903) internal successors, (90), 83 states have internal predecessors, (90), 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) [2022-11-21 16:46:48,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2022-11-21 16:46:48,711 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 32 [2022-11-21 16:46:48,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:46:48,712 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2022-11-21 16:46:48,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 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) [2022-11-21 16:46:48,712 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2022-11-21 16:46:48,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-21 16:46:48,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:46:48,714 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:46:48,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-21 16:46:48,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:46:48,921 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:46:48,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:46:48,921 INFO L85 PathProgramCache]: Analyzing trace with hash -831401164, now seen corresponding path program 8 times [2022-11-21 16:46:48,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:46:48,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544702661] [2022-11-21 16:46:48,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:46:48,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:46:48,938 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:46:48,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632953811] [2022-11-21 16:46:48,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:46:48,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:46:48,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:46:48,944 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:46:48,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-21 16:46:49,533 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:46:49,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:46:49,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-21 16:46:49,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:46:49,553 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 10 treesize of output 8 [2022-11-21 16:46:49,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:49,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-21 16:46:49,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2022-11-21 16:46:49,573 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 8 treesize of output 7 [2022-11-21 16:46:49,580 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 8 treesize of output 7 [2022-11-21 16:46:49,639 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 16:46:49,640 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 2 case distinctions, treesize of input 117 treesize of output 109 [2022-11-21 16:46:49,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 16:46:49,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:49,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:49,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:49,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 172 [2022-11-21 16:46:49,695 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-21 16:46:49,856 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 16:46:49,857 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 2 case distinctions, treesize of input 175 treesize of output 163 [2022-11-21 16:46:49,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:49,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:49,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:49,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:49,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:49,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 201 [2022-11-21 16:46:49,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:49,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:49,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:49,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:49,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 93 [2022-11-21 16:46:50,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,071 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 16:46:50,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 56 [2022-11-21 16:46:50,243 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 16:46:50,244 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 2 case distinctions, treesize of input 168 treesize of output 150 [2022-11-21 16:46:50,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 16:46:50,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 197 [2022-11-21 16:46:50,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 118 [2022-11-21 16:46:50,533 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 16:46:50,533 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 2 case distinctions, treesize of input 217 treesize of output 193 [2022-11-21 16:46:50,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 240 [2022-11-21 16:46:50,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 16:46:50,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:46:50,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 16:46:50,931 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-21 16:46:50,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 108 treesize of output 84 [2022-11-21 16:46:52,022 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-21 16:46:52,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 135 treesize of output 63 [2022-11-21 16:46:52,062 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:46:52,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:47:42,811 WARN L233 SmtUtils]: Spent 16.34s on a formula simplification. DAG size of input: 172 DAG size of output: 130 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:47:59,573 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse47 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse73 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse74 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse18 (<= .cse74 2147483647)) (.cse70 (* 8 .cse73)) (.cse71 (* .cse47 8)) (.cse72 (* .cse74 8)) (.cse36 (<= .cse73 2147483647)) (.cse69 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse0 (<= .cse69 2147483647)) (.cse37 (not .cse36)) (.cse13 (+ .cse72 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse15 (+ .cse71 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse17 (+ .cse70 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse49 (not .cse18)) (.cse6 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse7 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse8 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse10 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse48 (+ .cse72 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse46 (+ .cse71 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse45 (+ .cse70 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse12 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse51 (* 8 .cse69))) (and (or (not .cse0) (let ((.cse50 (select .cse12 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse51)))) (let ((.cse16 (+ 4 .cse50)) (.cse14 (+ 2 .cse50))) (and (or (forall ((v_ArrVal_680 Int)) (= (let ((.cse11 (store (store (store .cse12 .cse13 .cse14) .cse15 .cse16) .cse17 v_ArrVal_680))) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse11))) (let ((.cse9 (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse1 (select .cse9 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (select .cse11 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse5 (store .cse9 .cse10 (+ .cse1 .cse2)))) (let ((.cse3 (select (select (store .cse4 |c_ULTIMATE.start_main_~b~0#1.base| .cse5) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8))) (+ .cse1 .cse2 .cse3 (select (select (store .cse4 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse5 .cse6 (+ .cse1 .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7)))))))) 13)) .cse18) (or (let ((.cse27 (store .cse12 .cse48 .cse14)) (.cse19 (<= .cse47 2147483647))) (and (or .cse19 (forall ((v_ArrVal_680 Int)) (= (let ((.cse26 (store (store .cse27 .cse15 .cse16) .cse17 v_ArrVal_680))) (let ((.cse21 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse26))) (let ((.cse25 (select .cse21 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse23 (select .cse25 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse24 (select .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse22 (store .cse25 .cse10 (+ .cse23 .cse24)))) (let ((.cse20 (select (select (store .cse21 |c_ULTIMATE.start_main_~b~0#1.base| .cse22) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8))) (+ .cse20 (select (select (store .cse21 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse22 .cse6 (+ .cse20 .cse23 .cse24))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7) .cse23 .cse24))))))) 13))) (or (let ((.cse35 (store .cse27 .cse46 .cse16))) (and (or (forall ((v_ArrVal_680 Int)) (= 13 (let ((.cse34 (store .cse35 .cse17 v_ArrVal_680))) (let ((.cse30 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse34))) (let ((.cse33 (select .cse30 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse29 (select .cse33 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse32 (select .cse34 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse31 (store .cse33 .cse10 (+ .cse29 .cse32)))) (let ((.cse28 (select (select (store .cse30 |c_ULTIMATE.start_main_~b~0#1.base| .cse31) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8))) (+ .cse28 .cse29 (select (select (store .cse30 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse31 .cse6 (+ .cse28 .cse29 .cse32))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7) .cse32))))))))) .cse36) (or .cse37 (forall ((v_ArrVal_680 Int)) (= (let ((.cse44 (store .cse35 .cse45 v_ArrVal_680))) (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse44))) (let ((.cse43 (select .cse39 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse38 (select .cse44 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse41 (select .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse40 (store .cse43 .cse10 (+ .cse38 .cse41)))) (let ((.cse42 (select (select (store .cse39 |c_ULTIMATE.start_main_~b~0#1.base| .cse40) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8))) (+ .cse38 (select (select (store .cse39 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse40 .cse6 (+ .cse38 .cse41 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7) .cse41 .cse42))))))) 13))))) (not .cse19)))) .cse49))))) (or .cse0 (let ((.cse68 (select .cse12 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse51)))) (let ((.cse59 (+ .cse68 2)) (.cse60 (+ .cse68 4))) (and (or (and .cse37 (forall ((v_ArrVal_680 Int)) (= (let ((.cse58 (store (store (store .cse12 .cse13 .cse59) .cse15 .cse60) .cse17 v_ArrVal_680))) (let ((.cse54 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse58))) (let ((.cse57 (select .cse54 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse52 (select .cse58 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse56 (select .cse57 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse55 (store .cse57 .cse10 (+ .cse52 .cse56)))) (let ((.cse53 (select (select (store .cse54 |c_ULTIMATE.start_main_~b~0#1.base| .cse55) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8))) (+ .cse52 .cse53 (select (select (store .cse54 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse55 .cse6 (+ .cse52 .cse53 .cse56))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7) .cse56))))))) 13))) .cse18) (or .cse49 (forall ((v_ArrVal_680 Int)) (= (let ((.cse67 (store (store (store .cse12 .cse48 .cse59) .cse46 .cse60) .cse45 v_ArrVal_680))) (let ((.cse63 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse67))) (let ((.cse66 (select .cse63 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse61 (select .cse67 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse62 (select .cse66 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse64 (store .cse66 .cse10 (+ .cse61 .cse62)))) (let ((.cse65 (select (select (store .cse63 |c_ULTIMATE.start_main_~b~0#1.base| .cse64) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8))) (+ .cse61 .cse62 (select (select (store .cse63 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse64 .cse6 (+ .cse61 .cse62 .cse65))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7) .cse65))))))) 13))))))))))) is different from false [2022-11-21 16:48:00,244 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 1 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-21 16:48:00,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:00,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544702661] [2022-11-21 16:48:00,245 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:48:00,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632953811] [2022-11-21 16:48:00,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632953811] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:48:00,245 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:48:00,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2022-11-21 16:48:00,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999629025] [2022-11-21 16:48:00,246 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:00,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-21 16:48:00,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:00,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-21 16:48:00,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1146, Unknown=10, NotChecked=70, Total=1406 [2022-11-21 16:48:00,248 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand has 38 states, 38 states have (on average 1.763157894736842) internal successors, (67), 38 states have internal predecessors, (67), 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) [2022-11-21 16:48:10,904 WARN L233 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 315 DAG size of output: 59 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:48:23,653 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse130 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse126 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse13 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse123 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse52 (* 8 .cse126)) (.cse127 (* .cse130 8))) (let ((.cse128 (+ .cse127 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse97 (select .cse123 (+ .cse52 |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse95 (select .cse13 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse52))) (.cse131 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse124 (* .cse131 8)) (.cse61 (store .cse123 .cse128 (+ .cse97 .cse95))) (.cse25 (+ .cse127 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse129 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse7 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse43 (+ 24 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse27 (select .cse123 .cse7)) (.cse53 (<= .cse131 2147483647)) (.cse114 (<= .cse129 2147483647)) (.cse0 (<= .cse130 2147483647)) (.cse96 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse61) |c_ULTIMATE.start_main_~a~0#1.base|) .cse25)) (.cse106 (* 8 .cse129)) (.cse9 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse125 (+ .cse124 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse41 (select .cse123 .cse128)) (.cse42 (select .cse13 .cse25))) (let ((.cse39 (store .cse123 .cse125 (+ .cse41 .cse42))) (.cse29 (select .cse13 .cse9)) (.cse63 (select .cse123 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse15 (+ .cse127 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse44 (<= .cse126 2147483647)) (.cse40 (+ .cse106 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse71 (store .cse61 .cse125 (+ .cse96 .cse97 .cse95))) (.cse17 (not .cse0)) (.cse1 (not .cse114)) (.cse37 (+ .cse124 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse38 (not .cse53)) (.cse8 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse14 (+ .cse124 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse16 (+ .cse106 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse62 (* .cse27 2)) (.cse26 (select .cse123 .cse43)) (.cse11 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or .cse0 (and .cse1 (forall ((v_ArrVal_680 Int)) (= (let ((.cse12 (store (store .cse13 .cse14 (+ 2 (select .cse13 .cse15))) .cse16 v_ArrVal_680))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse12))) (let ((.cse10 (select .cse5 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse2 (select .cse10 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse3 (select .cse12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse6 (store .cse10 .cse11 (+ .cse2 .cse3)))) (let ((.cse4 (select (select (store .cse5 |c_ULTIMATE.start_main_~b~0#1.base| .cse6) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (+ .cse2 .cse3 .cse4 (select (select (store .cse5 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse6 .cse7 (+ .cse2 .cse3 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8)))))))) 13)))) (or .cse17 (forall ((v_ArrVal_680 Int)) (= (let ((.cse24 (store .cse13 .cse25 v_ArrVal_680))) (let ((.cse21 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse24))) (let ((.cse23 (select .cse21 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse18 (select .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse19 (select .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse22 (store .cse23 .cse11 (+ .cse18 .cse19)))) (let ((.cse20 (select (select (store .cse21 |c_ULTIMATE.start_main_~b~0#1.base| .cse22) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (+ .cse18 .cse19 .cse20 (select (select (store .cse21 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse22 .cse7 (+ .cse18 .cse19 .cse20))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8)))))))) 13))) (exists ((|ULTIMATE.start_main_~a~0#1.base| Int)) (let ((.cse28 (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (and (= .cse26 (+ .cse27 2 (select .cse28 8))) (= 2 (select .cse28 0)) (= .cse26 (+ .cse27 (select .cse28 16)))))) (= (select .cse13 .cse8) (+ .cse29 2)) (or (forall ((v_ArrVal_680 Int)) (= (let ((.cse36 (store .cse13 .cse37 v_ArrVal_680))) (let ((.cse33 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse36))) (let ((.cse35 (select .cse33 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse30 (select .cse36 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse31 (select .cse35 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse34 (store .cse35 .cse11 (+ .cse30 .cse31)))) (let ((.cse32 (select (select (store .cse33 |c_ULTIMATE.start_main_~b~0#1.base| .cse34) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (+ .cse30 .cse31 .cse32 (select (select (store .cse33 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse34 .cse7 (+ .cse30 .cse31 .cse32))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8)))))))) 13)) .cse38) (= (+ .cse27 6) .cse26) (= 13 (select (store .cse39 .cse40 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse39) |c_ULTIMATE.start_main_~a~0#1.base|) .cse37) .cse41 .cse42)) .cse43)) (or .cse44 (and .cse38 (forall ((v_ArrVal_680 Int)) (= (let ((.cse51 (store (store .cse13 .cse15 (+ (select .cse13 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse52)) 2)) .cse14 v_ArrVal_680))) (let ((.cse46 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse51))) (let ((.cse50 (select .cse46 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse45 (select .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse49 (select .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse47 (store .cse50 .cse11 (+ .cse45 .cse49)))) (let ((.cse48 (select (select (store .cse46 |c_ULTIMATE.start_main_~b~0#1.base| .cse47) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (+ .cse45 (select (select (store .cse46 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse47 .cse7 (+ .cse45 .cse48 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8) .cse48 .cse49))))))) 13)))) (or .cse53 (forall ((v_ArrVal_680 Int)) (= (let ((.cse60 (store .cse13 .cse14 v_ArrVal_680))) (let ((.cse56 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse60))) (let ((.cse59 (select .cse56 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse54 (select .cse60 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse55 (select .cse59 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse57 (store .cse59 .cse11 (+ .cse54 .cse55)))) (let ((.cse58 (select (select (store .cse56 |c_ULTIMATE.start_main_~b~0#1.base| .cse57) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (+ .cse54 .cse55 (select (select (store .cse56 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse57 .cse7 (+ .cse54 .cse55 .cse58))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8) .cse58))))))) 13))) (= (select .cse61 .cse43) 13) (= (select .cse39 .cse43) 13) (= .cse29 4) (= (+ .cse26 1) .cse62) (= (+ .cse26 .cse63) .cse62) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= .cse63 1) (or .cse0 (forall ((v_ArrVal_680 Int)) (= 13 (let ((.cse70 (store .cse13 .cse15 v_ArrVal_680))) (let ((.cse66 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse70))) (let ((.cse69 (select .cse66 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse64 (select .cse69 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse65 (select .cse70 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse67 (store .cse69 .cse11 (+ .cse64 .cse65)))) (let ((.cse68 (select (select (store .cse66 |c_ULTIMATE.start_main_~b~0#1.base| .cse67) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (+ .cse64 .cse65 (select (select (store .cse66 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse67 .cse7 (+ .cse64 .cse65 .cse68))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8) .cse68)))))))))) (= 13 (select .cse71 .cse43)) (or (let ((.cse87 (+ 2 .cse95))) (and (or .cse17 (let ((.cse79 (store .cse13 .cse25 .cse87))) (and (or .cse38 (forall ((v_ArrVal_680 Int)) (= (let ((.cse78 (store .cse79 .cse37 v_ArrVal_680))) (let ((.cse75 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse78))) (let ((.cse77 (select .cse75 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse72 (select .cse77 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse73 (select .cse78 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse76 (store .cse77 .cse11 (+ .cse72 .cse73)))) (let ((.cse74 (select (select (store .cse75 |c_ULTIMATE.start_main_~b~0#1.base| .cse76) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (+ .cse72 .cse73 .cse74 (select (select (store .cse75 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse76 .cse7 (+ .cse72 .cse73 .cse74))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8)))))))) 13))) (or .cse53 (forall ((v_ArrVal_680 Int)) (= 13 (let ((.cse86 (store .cse79 .cse14 v_ArrVal_680))) (let ((.cse82 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse86))) (let ((.cse85 (select .cse82 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse80 (select .cse85 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse84 (select .cse86 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse83 (store .cse85 .cse11 (+ .cse80 .cse84)))) (let ((.cse81 (select (select (store .cse82 |c_ULTIMATE.start_main_~b~0#1.base| .cse83) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (+ .cse80 .cse81 (select (select (store .cse82 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse83 .cse7 (+ .cse80 .cse81 .cse84))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8) .cse84))))))))))))) (or (forall ((v_ArrVal_680 Int)) (= (let ((.cse94 (store (store .cse13 .cse15 .cse87) .cse14 v_ArrVal_680))) (let ((.cse89 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse94))) (let ((.cse93 (select .cse89 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse88 (select .cse94 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse92 (select .cse93 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse90 (store .cse93 .cse11 (+ .cse88 .cse92)))) (let ((.cse91 (select (select (store .cse89 |c_ULTIMATE.start_main_~b~0#1.base| .cse90) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (+ .cse88 (select (select (store .cse89 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse90 .cse7 (+ .cse88 .cse91 .cse92))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8) .cse91 .cse92))))))) 13)) .cse0))) (not .cse44)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= 13 (select (store .cse71 .cse40 (+ .cse96 .cse97 .cse95 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse71) |c_ULTIMATE.start_main_~a~0#1.base|) .cse37))) .cse43)) (= 2 (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|)) (or .cse17 (let ((.cse115 (+ 2 .cse42))) (and (or (let ((.cse105 (store .cse13 .cse37 .cse115))) (and (or .cse1 (forall ((v_ArrVal_680 Int)) (= (let ((.cse104 (store .cse105 (+ .cse106 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_680))) (let ((.cse101 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse104))) (let ((.cse103 (select .cse101 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse99 (select .cse104 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse100 (select .cse103 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse102 (store .cse103 .cse11 (+ .cse99 .cse100)))) (let ((.cse98 (select (select (store .cse101 |c_ULTIMATE.start_main_~b~0#1.base| .cse102) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (+ .cse98 .cse99 .cse100 (select (select (store .cse101 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse102 .cse7 (+ .cse98 .cse99 .cse100))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8)))))))) 13))) (or (forall ((v_ArrVal_680 Int)) (= 13 (let ((.cse113 (store .cse105 .cse16 v_ArrVal_680))) (let ((.cse110 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse113))) (let ((.cse112 (select .cse110 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse108 (select .cse112 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse109 (select .cse113 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse111 (store .cse112 .cse11 (+ .cse108 .cse109)))) (let ((.cse107 (select (select (store .cse110 |c_ULTIMATE.start_main_~b~0#1.base| .cse111) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (+ .cse107 .cse108 .cse109 (select (select (store .cse110 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse111 .cse7 (+ .cse107 .cse108 .cse109))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8)))))))))) .cse114))) .cse38) (or .cse53 (forall ((v_ArrVal_680 Int)) (= (let ((.cse122 (store (store .cse13 .cse14 .cse115) .cse16 v_ArrVal_680))) (let ((.cse116 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse122))) (let ((.cse121 (select .cse116 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse118 (select .cse122 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse119 (select .cse121 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse117 (store .cse121 .cse11 (+ .cse118 .cse119)))) (let ((.cse120 (select (select (store .cse116 |c_ULTIMATE.start_main_~b~0#1.base| .cse117) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (+ (select (select (store .cse116 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse117 .cse7 (+ .cse118 .cse119 .cse120))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8) .cse118 .cse119 .cse120))))))) 13)))))) (= (+ 2 .cse62) (+ .cse26 (select .cse123 .cse11)))))))))) is different from true [2022-11-21 16:48:29,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 16:48:46,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 16:48:58,916 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 94 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:49:00,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 16:49:02,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 16:49:27,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:49:27,530 INFO L93 Difference]: Finished difference Result 137 states and 147 transitions. [2022-11-21 16:49:27,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-21 16:49:27,531 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 1.763157894736842) internal successors, (67), 38 states have internal predecessors, (67), 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 [2022-11-21 16:49:27,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:49:27,531 INFO L225 Difference]: With dead ends: 137 [2022-11-21 16:49:27,531 INFO L226 Difference]: Without dead ends: 112 [2022-11-21 16:49:27,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1053 ImplicationChecksByTransitivity, 131.0s TimeCoverageRelationStatistics Valid=479, Invalid=3175, Unknown=14, NotChecked=238, Total=3906 [2022-11-21 16:49:27,533 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 187 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 119 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:49:27,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 190 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 515 Invalid, 2 Unknown, 60 Unchecked, 22.6s Time] [2022-11-21 16:49:27,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-21 16:49:27,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 94. [2022-11-21 16:49:27,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.1290322580645162) internal successors, (105), 93 states have internal predecessors, (105), 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) [2022-11-21 16:49:27,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 105 transitions. [2022-11-21 16:49:27,574 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 105 transitions. Word has length 36 [2022-11-21 16:49:27,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:49:27,575 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 105 transitions. [2022-11-21 16:49:27,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 1.763157894736842) internal successors, (67), 38 states have internal predecessors, (67), 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) [2022-11-21 16:49:27,575 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 105 transitions. [2022-11-21 16:49:27,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-21 16:49:27,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:49:27,576 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:27,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-21 16:49:27,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-21 16:49:27,785 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:49:27,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:27,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1226631488, now seen corresponding path program 9 times [2022-11-21 16:49:27,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:27,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932775097] [2022-11-21 16:49:27,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:27,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:27,811 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:49:27,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887042462] [2022-11-21 16:49:27,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 16:49:27,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:49:27,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:27,813 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:49:27,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-21 16:49:31,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-21 16:49:31,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:49:31,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 87 conjunts are in the unsatisfiable core [2022-11-21 16:49:31,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:49:31,170 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-21 16:49:31,171 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-11-21 16:49:31,208 INFO L321 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2022-11-21 16:49:31,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 46 treesize of output 71 [2022-11-21 16:49:31,219 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 8 treesize of output 7 [2022-11-21 16:49:31,268 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 8 treesize of output 7 [2022-11-21 16:49:31,308 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 8 treesize of output 7 [2022-11-21 16:49:31,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2022-11-21 16:49:31,341 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 5 treesize of output 3 [2022-11-21 16:49:31,367 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 10 treesize of output 8 [2022-11-21 16:49:31,479 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 16:49:31,479 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 2 case distinctions, treesize of input 64 treesize of output 60 [2022-11-21 16:49:31,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:31,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:31,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2022-11-21 16:49:31,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:31,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:31,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 24 [2022-11-21 16:49:31,647 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 16:49:31,647 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 2 case distinctions, treesize of input 64 treesize of output 60 [2022-11-21 16:49:31,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:31,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:31,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2022-11-21 16:49:31,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:31,823 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 16:49:31,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-11-21 16:49:31,945 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-21 16:49:31,946 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 2 case distinctions, treesize of input 64 treesize of output 64 [2022-11-21 16:49:31,960 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-21 16:49:31,960 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 [2022-11-21 16:49:31,987 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 [2022-11-21 16:49:32,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 93 [2022-11-21 16:49:32,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:32,318 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-21 16:49:32,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2022-11-21 16:49:32,368 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 [2022-11-21 16:49:33,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 177 [2022-11-21 16:49:33,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 16:49:33,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:33,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:33,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:33,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:33,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 194 [2022-11-21 16:49:33,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:33,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:33,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 42 [2022-11-21 16:49:34,356 INFO L321 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2022-11-21 16:49:34,357 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 5 case distinctions, treesize of input 155 treesize of output 158 [2022-11-21 16:49:34,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:34,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:34,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:34,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:34,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 123 [2022-11-21 16:49:34,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:34,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:34,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:34,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:34,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 42 [2022-11-21 16:49:34,937 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 16:49:34,937 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 2 case distinctions, treesize of input 109 treesize of output 99 [2022-11-21 16:49:34,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:34,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:34,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:34,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:34,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 123 [2022-11-21 16:49:34,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 36 [2022-11-21 16:49:35,319 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 16:49:35,319 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 2 case distinctions, treesize of input 109 treesize of output 99 [2022-11-21 16:49:35,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 123 [2022-11-21 16:49:35,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 42 [2022-11-21 16:49:35,713 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 16:49:35,714 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 2 case distinctions, treesize of input 109 treesize of output 99 [2022-11-21 16:49:35,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 123 [2022-11-21 16:49:35,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:35,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 32 [2022-11-21 16:49:37,077 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-21 16:49:37,078 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 82 treesize of output 72 [2022-11-21 16:49:37,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:49:37,087 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 15 treesize of output 11 [2022-11-21 16:49:37,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2022-11-21 16:49:37,165 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:37,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:49:50,070 WARN L859 $PredicateComparison]: unable to prove that (or (< 6 c_~N~0) (let ((.cse19 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse17 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse7 (<= .cse19 2147483647)) (.cse18 (* .cse19 8))) (let ((.cse9 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse6 (not .cse7)) (.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse4 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse11 (* .cse17 8)) (.cse0 (<= .cse17 2147483647))) (and (or .cse0 (let ((.cse5 (+ .cse11 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (or (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_765 Int)) (let ((.cse1 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse1 c_~N~0)) (= 3 (let ((.cse2 (store (store (store (store .cse3 .cse4 v_ArrVal_759) .cse5 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse1 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse2) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)))) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0)))) .cse6) (or .cse7 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_765 Int)) (let ((.cse10 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (= (let ((.cse8 (store (store (store (store .cse3 .cse9 v_ArrVal_759) .cse5 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse10 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse8) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) 3) (not (< .cse10 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0)))))))) (or (let ((.cse14 (+ .cse11 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_765 Int)) (let ((.cse12 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse12 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= (let ((.cse13 (store (store (store (store .cse3 .cse9 v_ArrVal_759) .cse14 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse12 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse13) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) 3)))) .cse7) (or .cse6 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_765 Int)) (let ((.cse15 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse15 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= 3 (let ((.cse16 (store (store (store (store .cse3 .cse4 v_ArrVal_759) .cse14 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse15 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse16) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))))) (not .cse0)))))) (<= c_~N~0 5)) is different from true [2022-11-21 16:49:52,443 WARN L859 $PredicateComparison]: unable to prove that (or (< 6 c_~N~0) (<= c_~N~0 5) (let ((.cse19 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse18 (* .cse19 8)) (.cse6 (<= .cse19 2147483647)) (.cse17 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse11 (<= .cse17 2147483647)) (.cse5 (not .cse6)) (.cse3 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse9 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse10 (* 8 .cse17))) (and (or (let ((.cse4 (+ .cse10 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (or (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_765 Int)) (let ((.cse0 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse0 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= (let ((.cse1 (store (store (store (store .cse2 .cse3 v_ArrVal_759) .cse4 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse0 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse1) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|))) 3)))) .cse5) (or .cse6 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_765 Int)) (let ((.cse7 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse7 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= (let ((.cse8 (store (store (store (store .cse2 .cse9 v_ArrVal_759) .cse4 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse7 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse8) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|))) 3))))))) .cse11) (or (not .cse11) (let ((.cse14 (+ .cse10 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or .cse5 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_765 Int)) (let ((.cse12 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse12 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= 3 (let ((.cse13 (store (store (store (store .cse2 .cse3 v_ArrVal_759) .cse14 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse12 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse13) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) (or .cse6 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_765 Int)) (let ((.cse15 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse15 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= 3 (let ((.cse16 (store (store (store (store .cse2 .cse9 v_ArrVal_759) .cse14 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse15 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse16) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))))))))))) is different from true [2022-11-21 16:49:55,866 WARN L859 $PredicateComparison]: unable to prove that (or (< 6 c_~N~0) (let ((.cse29 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse28 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse16 (<= .cse28 2147483647)) (.cse8 (<= .cse29 2147483647)) (.cse27 (* .cse29 8)) (.cse26 (* 8 .cse28)) (.cse25 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse0 (<= .cse25 2147483647)) (.cse12 (+ .cse26 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse11 (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse6 (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse7 (+ .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse13 (not .cse8)) (.cse1 (not .cse16)) (.cse17 (* .cse25 8))) (and (or (not .cse0) (let ((.cse5 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or .cse1 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_756 Int) (v_ArrVal_765 Int)) (let ((.cse2 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse2 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= 3 (let ((.cse3 (store (store (store (store (store .cse4 .cse5 v_ArrVal_756) .cse6 v_ArrVal_759) .cse7 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse2 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) (or (and (or .cse8 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_756 Int) (v_ArrVal_765 Int)) (let ((.cse9 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse9 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= (let ((.cse10 (store (store (store (store (store .cse4 .cse5 v_ArrVal_756) .cse11 v_ArrVal_759) .cse12 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse9 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse10 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse10) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) 3))))) (or .cse13 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_756 Int) (v_ArrVal_765 Int)) (let ((.cse14 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse14 c_~N~0)) (= (let ((.cse15 (store (store (store (store (store .cse4 .cse5 v_ArrVal_756) .cse6 v_ArrVal_759) .cse12 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse14 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse15 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse15) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) 3) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0)))))) .cse16)))) (or .cse0 (let ((.cse20 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (or .cse16 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_756 Int) (v_ArrVal_765 Int)) (let ((.cse18 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse18 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= (let ((.cse19 (store (store (store (store (store .cse4 .cse20 v_ArrVal_756) .cse11 v_ArrVal_759) .cse12 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse18 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse19 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse19) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) 3))))) (or (and (or (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_756 Int) (v_ArrVal_765 Int)) (let ((.cse21 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse21 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= 3 (let ((.cse22 (store (store (store (store (store .cse4 .cse20 v_ArrVal_756) .cse11 v_ArrVal_759) .cse7 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse21 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse22) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse22 |c_ULTIMATE.start_main_~a~0#1.offset|))))))) .cse8) (or (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_756 Int) (v_ArrVal_765 Int)) (let ((.cse23 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse23 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= 3 (let ((.cse24 (store (store (store (store (store .cse4 .cse20 v_ArrVal_756) .cse6 v_ArrVal_759) .cse7 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse23 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse24) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) .cse13)) .cse1)))))))) (<= c_~N~0 5)) is different from true [2022-11-21 16:49:55,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 16:49:55,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 16:49:55,911 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-21 16:49:55,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 1 [2022-11-21 16:49:55,915 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 13 not checked. [2022-11-21 16:49:55,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:55,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932775097] [2022-11-21 16:49:55,916 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 16:49:55,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887042462] [2022-11-21 16:49:55,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887042462] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:49:55,917 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:49:55,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 29] total 55 [2022-11-21 16:49:55,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103762866] [2022-11-21 16:49:55,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:49:55,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-21 16:49:55,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:55,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-21 16:49:55,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=444, Invalid=2217, Unknown=3, NotChecked=306, Total=2970 [2022-11-21 16:49:55,920 INFO L87 Difference]: Start difference. First operand 94 states and 105 transitions. Second operand has 55 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 55 states have internal predecessors, (70), 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) [2022-11-21 16:50:36,480 WARN L233 SmtUtils]: Spent 38.82s on a formula simplification. DAG size of input: 195 DAG size of output: 187 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:50:38,789 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (<= (mod c_~N~0 4294967296) 536870911)) (.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and .cse0 (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (or (and (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 1) .cse0) (and (not .cse0) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0))) (<= c_~N~0 2147483647) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (or (< 6 c_~N~0) (let ((.cse30 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse29 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse17 (<= .cse29 2147483647)) (.cse9 (<= .cse30 2147483647)) (.cse28 (* .cse30 8)) (.cse27 (* 8 .cse29)) (.cse26 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse1 (<= .cse26 2147483647)) (.cse13 (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse12 (+ .cse28 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse7 (+ .cse28 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse8 (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse14 (not .cse9)) (.cse2 (not .cse17)) (.cse18 (* .cse26 8))) (and (or (not .cse1) (let ((.cse6 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or .cse2 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_756 Int) (v_ArrVal_765 Int)) (let ((.cse3 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse3 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= 3 (let ((.cse4 (store (store (store (store (store .cse5 .cse6 v_ArrVal_756) .cse7 v_ArrVal_759) .cse8 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse3 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse4) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) (or (and (or .cse9 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_756 Int) (v_ArrVal_765 Int)) (let ((.cse10 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse10 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= (let ((.cse11 (store (store (store (store (store .cse5 .cse6 v_ArrVal_756) .cse12 v_ArrVal_759) .cse13 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse10 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse11 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse11) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) 3))))) (or .cse14 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_756 Int) (v_ArrVal_765 Int)) (let ((.cse15 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse15 c_~N~0)) (= (let ((.cse16 (store (store (store (store (store .cse5 .cse6 v_ArrVal_756) .cse7 v_ArrVal_759) .cse13 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse15 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse16) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) 3) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0)))))) .cse17)))) (or .cse1 (let ((.cse21 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (or .cse17 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_756 Int) (v_ArrVal_765 Int)) (let ((.cse19 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse19 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= (let ((.cse20 (store (store (store (store (store .cse5 .cse21 v_ArrVal_756) .cse12 v_ArrVal_759) .cse13 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse19 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) 3))))) (or (and (or (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_756 Int) (v_ArrVal_765 Int)) (let ((.cse22 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse22 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= 3 (let ((.cse23 (store (store (store (store (store .cse5 .cse21 v_ArrVal_756) .cse12 v_ArrVal_759) .cse8 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse22 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse23) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse23 |c_ULTIMATE.start_main_~a~0#1.offset|))))))) .cse9) (or (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_759 Int) (v_ArrVal_756 Int) (v_ArrVal_765 Int)) (let ((.cse24 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse24 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= 3 (let ((.cse25 (store (store (store (store (store .cse5 .cse21 v_ArrVal_756) .cse7 v_ArrVal_759) .cse8 v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse24 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse25 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse25) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) .cse14)) .cse2)))))))) (<= c_~N~0 5)) (= 2 (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|)) (= |c_ULTIMATE.start_main_~i~0#1| 1))) is different from true [2022-11-21 16:51:10,406 WARN L233 SmtUtils]: Spent 11.13s on a formula simplification. DAG size of input: 251 DAG size of output: 207 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:51:16,375 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse46 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse14 (* 8 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (.cse44 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse45 (mod .cse46 4294967296))) (let ((.cse43 (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse38 (* .cse45 8)) (.cse22 (* .cse44 8)) (.cse6 (+ 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse11 (+ |c_ULTIMATE.start_main_~i~0#1| 4)) (.cse3 (< .cse46 c_~N~0)) (.cse35 (<= .cse45 2147483647)) (.cse23 (<= .cse44 2147483647)) (.cse21 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse27 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse14))) (let ((.cse15 (select .cse21 .cse27)) (.cse5 (not (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0))) (.cse24 (not .cse23)) (.cse17 (< 6 c_~N~0)) (.cse18 (<= c_~N~0 5)) (.cse28 (+ c_~N~0 1)) (.cse39 (not .cse35)) (.cse34 (* |c_ULTIMATE.start_main_~i~0#1| |c_ULTIMATE.start_main_~i~0#1|)) (.cse32 (not .cse3)) (.cse12 (<= c_~N~0 .cse11)) (.cse13 (< (+ 5 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse7 (<= c_~N~0 1)) (.cse10 (+ (* (mod .cse6 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse16 (+ (* (mod .cse11 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse1 (+ .cse22 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse8 (+ .cse38 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse9 (+ (* 8 (mod .cse43 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse4 (not (< 1 c_~N~0))) (.cse31 (< .cse43 c_~N~0))) (and (or (forall ((v_ArrVal_775 Int)) (= 3 (select (store .cse0 .cse1 v_ArrVal_775) .cse2))) .cse3 .cse4 .cse5) (or (<= c_~N~0 .cse6) .cse7 (forall ((v_ArrVal_775 Int) (v_ArrVal_773 Int) (v_ArrVal_771 Int) (v_ArrVal_768 Int)) (= 3 (select (store (store (store (store .cse0 .cse1 v_ArrVal_768) .cse8 v_ArrVal_771) .cse9 v_ArrVal_773) .cse10 v_ArrVal_775) .cse2))) (< .cse11 c_~N~0)) (or .cse12 .cse13 .cse7 (forall ((v_ArrVal_775 Int) (v_ArrVal_773 Int) (v_ArrVal_771 Int) (v_ArrVal_768 Int)) (= (select (store (store (store (store (store .cse0 .cse1 (+ (select .cse0 (+ .cse14 |c_ULTIMATE.start_main_~b~0#1.offset|)) .cse15)) .cse8 v_ArrVal_768) .cse9 v_ArrVal_771) .cse10 v_ArrVal_773) .cse16 v_ArrVal_775) .cse2) 3))) (<= (mod c_~N~0 4294967296) 536870911) (or .cse17 .cse18 (and (or (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_765 Int)) (let ((.cse19 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse19 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= (let ((.cse20 (store (store (store .cse21 (+ .cse22 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse19 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|))) 3)))) .cse23) (or .cse24 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_765 Int)) (let ((.cse25 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse25 c_~N~0)) (= 3 (let ((.cse26 (store (store (store .cse21 (+ .cse22 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse25 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse26) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)))) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0))))))) (or (exists ((v_DerPreprocessor_20 Int)) (= 2 (select (store (store .cse21 .cse27 v_DerPreprocessor_20) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse14) .cse15) |c_ULTIMATE.start_main_~a~0#1.offset|))) (= (* (mod (+ 4294967294 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) 0)) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (or (exists ((|ULTIMATE.start_main_~i~0#1| Int)) (and (< |ULTIMATE.start_main_~i~0#1| .cse28) (not (< |ULTIMATE.start_main_~i~0#1| c_~N~0)) (exists ((v_DerPreprocessor_20 Int)) (= (select (let ((.cse30 (* (mod (+ 4294967295 |ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse29 (+ .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store (store .cse21 .cse29 v_DerPreprocessor_20) (+ .cse30 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) (select .cse21 .cse29)))) |c_ULTIMATE.start_main_~a~0#1.offset|) 2)))) (<= (+ 2 (* 4294967296 (div (+ c_~N~0 4294967293) 4294967296))) c_~N~0)) (or .cse31 .cse4 .cse32 (forall ((v_ArrVal_775 Int) (v_ArrVal_773 Int)) (= 3 (select (store (store .cse0 .cse1 v_ArrVal_773) .cse8 v_ArrVal_775) .cse2)))) (or .cse5 (let ((.cse33 (+ .cse34 |c_ULTIMATE.start_main_~i~0#1| 1))) (and (or .cse24 (= (select .cse0 .cse1) .cse33)) (or (= (select .cse0 (+ .cse22 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) .cse33) .cse23)))) (<= c_~N~0 2147483647) (or .cse17 (and (or .cse35 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_765 Int)) (let ((.cse36 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse36 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= 3 (let ((.cse37 (store (store (store .cse21 (+ .cse38 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse36 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse37) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse37 |c_ULTIMATE.start_main_~a~0#1.offset|)))))))) (or .cse39 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_765 Int)) (let ((.cse40 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse40 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= (let ((.cse41 (store (store (store .cse21 (+ .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse40 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse41) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse41 |c_ULTIMATE.start_main_~a~0#1.offset|))) 3)))))) .cse18) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (< |c_ULTIMATE.start_main_~i~0#1| .cse28) (or (let ((.cse42 (+ (* 3 |c_ULTIMATE.start_main_~i~0#1|) 3 .cse34))) (and (or (= (select .cse0 .cse8) .cse42) .cse39) (or .cse35 (= (select .cse0 (+ .cse38 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) .cse42)))) .cse32) (or .cse12 .cse13 .cse7 (forall ((v_ArrVal_775 Int) (v_ArrVal_773 Int) (v_ArrVal_771 Int) (v_ArrVal_768 Int)) (= 3 (select (store (store (store (store .cse0 .cse8 v_ArrVal_768) .cse9 v_ArrVal_771) .cse10 v_ArrVal_773) .cse16 v_ArrVal_775) .cse2)))) (or (forall ((v_ArrVal_775 Int) (v_ArrVal_773 Int) (v_ArrVal_771 Int)) (= (select (store (store (store .cse0 .cse1 v_ArrVal_771) .cse8 v_ArrVal_773) .cse9 v_ArrVal_775) .cse2) 3)) .cse4 (not .cse31) (< .cse6 c_~N~0))))))) is different from true [2022-11-21 16:52:01,095 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse31 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse7 (* 8 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (.cse32 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse33 (mod .cse31 4294967296))) (let ((.cse23 (<= .cse33 2147483647)) (.cse26 (* .cse33 8)) (.cse15 (* .cse32 8)) (.cse16 (<= .cse32 2147483647)) (.cse14 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse20 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7))) (let ((.cse2 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse8 (select .cse14 .cse20)) (.cse17 (not .cse16)) (.cse6 (+ .cse15 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (< 6 c_~N~0)) (.cse11 (<= c_~N~0 5)) (.cse4 (+ c_~N~0 1)) (.cse9 (+ .cse26 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse27 (not .cse23)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse22 (* |c_ULTIMATE.start_main_~i~0#1| |c_ULTIMATE.start_main_~i~0#1|))) (and (exists ((|ULTIMATE.start_main_~a~0#1.base| Int) (v_prenex_24 Int) (v_DerPreprocessor_20 Int)) (let ((.cse0 (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (and (not (< v_prenex_24 c_~N~0)) (= (+ (select .cse0 0) 1) (select .cse1 .cse2)) (= (select (let ((.cse3 (* (mod (+ 4294967295 v_prenex_24) 4294967296) 8))) (store (store .cse0 .cse3 v_DerPreprocessor_20) (+ .cse3 (- 34359738368)) (select .cse0 .cse3))) 0) 2) (< v_prenex_24 .cse4)))) (let ((.cse5 (+ |c_ULTIMATE.start_main_~i~0#1| 4))) (or (<= c_~N~0 .cse5) (< (+ 5 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0) (<= c_~N~0 1) (forall ((v_ArrVal_775 Int) (v_ArrVal_773 Int) (v_ArrVal_771 Int) (v_ArrVal_768 Int)) (= (select (store (store (store (store (store .cse1 .cse6 (+ (select .cse1 (+ .cse7 |c_ULTIMATE.start_main_~b~0#1.offset|)) .cse8)) .cse9 v_ArrVal_768) (+ (* 8 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_771) (+ (* (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_773) (+ (* (mod .cse5 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_775) .cse2) 3)))) (<= (mod c_~N~0 4294967296) 536870911) (or .cse10 .cse11 (and (or (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_765 Int)) (let ((.cse12 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse12 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= (let ((.cse13 (store (store (store .cse14 (+ .cse15 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse12 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse13) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|))) 3)))) .cse16) (or .cse17 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_765 Int)) (let ((.cse18 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse18 c_~N~0)) (= 3 (let ((.cse19 (store (store (store .cse14 (+ .cse15 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse18 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select .cse19 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse19) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)))) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0))))))) (or (exists ((v_DerPreprocessor_20 Int)) (= 2 (select (store (store .cse14 .cse20 v_DerPreprocessor_20) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse7) .cse8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (= (* (mod (+ 4294967294 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) 0)) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (or (not (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) (let ((.cse21 (+ .cse22 |c_ULTIMATE.start_main_~i~0#1| 1))) (and (or .cse17 (= (select .cse1 .cse6) .cse21)) (or (= (select .cse1 (+ .cse15 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) .cse21) .cse16)))) (<= c_~N~0 2147483647) (or .cse10 (and (or .cse23 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_765 Int)) (let ((.cse24 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse24 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= 3 (let ((.cse25 (store (store (store .cse14 (+ .cse26 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse24 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse25) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse25 |c_ULTIMATE.start_main_~a~0#1.offset|)))))))) (or .cse27 (forall ((v_ArrVal_763 Int) (v_ArrVal_761 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_765 Int)) (let ((.cse28 (+ |v_ULTIMATE.start_main_~i~0#1_198| 1))) (or (not (< .cse28 c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_198|) c_~N~0) (= (let ((.cse29 (store (store (store .cse14 (+ .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_761) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_198| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_763) (+ (* 8 (mod .cse28 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_765))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse29) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|))) 3)))))) .cse11) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (< |c_ULTIMATE.start_main_~i~0#1| .cse4) (or (let ((.cse30 (+ (* 3 |c_ULTIMATE.start_main_~i~0#1|) 3 .cse22))) (and (or (= (select .cse1 .cse9) .cse30) .cse27) (or .cse23 (= (select .cse1 (+ .cse26 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) .cse30)))) (not (< .cse31 c_~N~0))) (< 5 c_~N~0) (<= c_~N~0 6) (= 2 (select .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|)) (<= |c_ULTIMATE.start_main_~i~0#1| 6)))))) is different from true [2022-11-21 16:52:06,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 16:52:14,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 16:52:34,093 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 189 DAG size of output: 181 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:52:44,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2022-11-21 16:52:58,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2022-11-21 16:53:21,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:53:21,679 INFO L93 Difference]: Finished difference Result 262 states and 288 transitions. [2022-11-21 16:53:21,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-11-21 16:53:21,680 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 55 states have internal predecessors, (70), 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 [2022-11-21 16:53:21,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:53:21,682 INFO L225 Difference]: With dead ends: 262 [2022-11-21 16:53:21,682 INFO L226 Difference]: Without dead ends: 260 [2022-11-21 16:53:21,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 8200 ImplicationChecksByTransitivity, 205.5s TimeCoverageRelationStatistics Valid=4560, Invalid=22511, Unknown=13, NotChecked=1986, Total=29070 [2022-11-21 16:53:21,690 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 864 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 473 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 279 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:53:21,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 478 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 1113 Invalid, 2 Unknown, 279 Unchecked, 17.8s Time] [2022-11-21 16:53:21,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-11-21 16:53:21,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 162. [2022-11-21 16:53:21,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 1.1428571428571428) internal successors, (184), 161 states have internal predecessors, (184), 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) [2022-11-21 16:53:21,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 184 transitions. [2022-11-21 16:53:21,781 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 184 transitions. Word has length 36 [2022-11-21 16:53:21,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:53:21,782 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 184 transitions. [2022-11-21 16:53:21,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 55 states have internal predecessors, (70), 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) [2022-11-21 16:53:21,783 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 184 transitions. [2022-11-21 16:53:21,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-21 16:53:21,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:53:21,784 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:53:21,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-21 16:53:21,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-21 16:53:21,995 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:53:21,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:53:21,995 INFO L85 PathProgramCache]: Analyzing trace with hash 934780102, now seen corresponding path program 5 times [2022-11-21 16:53:21,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:53:21,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138369403] [2022-11-21 16:53:21,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:53:21,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:53:22,025 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 16:53:22,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778387702] [2022-11-21 16:53:22,025 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-21 16:53:22,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:53:22,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:53:22,027 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:53:22,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63a51051-bb7c-4775-ad55-d61b38c26ebc/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process