./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/head-3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/head-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c5bd754d8b8f4ee0e5d64ce8be5479928d2ed38d23ef60f76e73d0a8955b4a59 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:46:25,063 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:46:25,146 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 10:46:25,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:46:25,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:46:25,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:46:25,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:46:25,178 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:46:25,179 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:46:25,180 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:46:25,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:46:25,181 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:46:25,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:46:25,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:46:25,183 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:46:25,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:46:25,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:46:25,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:46:25,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:46:25,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:46:25,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:46:25,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:46:25,187 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 10:46:25,187 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:46:25,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:46:25,188 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:46:25,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:46:25,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:46:25,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:46:25,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:46:25,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:25,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:46:25,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:46:25,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:46:25,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:46:25,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:46:25,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:46:25,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:46:25,193 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:46:25,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:46:25,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:46:25,194 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5bd754d8b8f4ee0e5d64ce8be5479928d2ed38d23ef60f76e73d0a8955b4a59 [2023-11-26 10:46:25,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:46:25,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:46:25,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:46:25,478 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:46:25,478 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:46:25,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/busybox-1.22.0/head-3.i [2023-11-26 10:46:28,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:46:29,197 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:46:29,199 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/sv-benchmarks/c/busybox-1.22.0/head-3.i [2023-11-26 10:46:29,240 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/data/3d087684e/ba5639bc8ea0427793f2135e96b2d51e/FLAG5b3346935 [2023-11-26 10:46:29,266 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/data/3d087684e/ba5639bc8ea0427793f2135e96b2d51e [2023-11-26 10:46:29,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:46:29,276 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:46:29,280 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:29,280 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:46:29,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:46:29,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:29" (1/1) ... [2023-11-26 10:46:29,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c373a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:29, skipping insertion in model container [2023-11-26 10:46:29,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:29" (1/1) ... [2023-11-26 10:46:29,390 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:46:31,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:31,034 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:46:31,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:31,426 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:46:31,426 WARN L675 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:46:31,427 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:46:31,427 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:46:31,427 WARN L675 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:46:31,427 WARN L675 CHandler]: The function fclose is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:46:31,427 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:46:31,428 WARN L675 CHandler]: The function fputs is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:46:31,428 WARN L675 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:46:31,436 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:46:31,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31 WrapperNode [2023-11-26 10:46:31,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:31,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:31,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:46:31,439 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:46:31,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,531 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,628 INFO L138 Inliner]: procedures = 581, calls = 371, calls flagged for inlining = 30, calls inlined = 28, statements flattened = 1144 [2023-11-26 10:46:31,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:31,630 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:46:31,630 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:46:31,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:46:31,670 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,683 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,750 INFO L175 MemorySlicer]: Split 222 memory accesses to 19 slices as follows [2, 7, 3, 3, 2, 18, 2, 1, 20, 57, 45, 10, 10, 23, 1, 10, 1, 4, 3]. 26 percent of accesses are in the largest equivalence class. The 89 initializations are split as follows [2, 0, 0, 3, 2, 0, 0, 0, 0, 20, 33, 0, 1, 20, 0, 7, 0, 1, 0]. The 57 writes are split as follows [0, 7, 0, 0, 0, 4, 1, 1, 3, 23, 2, 6, 4, 0, 1, 0, 1, 1, 3]. [2023-11-26 10:46:31,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,751 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,894 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:46:31,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:46:31,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:46:31,945 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:46:31,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:31,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:31,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:32,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:46:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-26 10:46:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#0 [2023-11-26 10:46:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#1 [2023-11-26 10:46:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#2 [2023-11-26 10:46:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#3 [2023-11-26 10:46:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#4 [2023-11-26 10:46:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#5 [2023-11-26 10:46:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#6 [2023-11-26 10:46:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#7 [2023-11-26 10:46:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#8 [2023-11-26 10:46:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#9 [2023-11-26 10:46:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#10 [2023-11-26 10:46:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#11 [2023-11-26 10:46:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#12 [2023-11-26 10:46:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#13 [2023-11-26 10:46:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#14 [2023-11-26 10:46:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#15 [2023-11-26 10:46:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#16 [2023-11-26 10:46:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#17 [2023-11-26 10:46:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#18 [2023-11-26 10:46:32,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#0 [2023-11-26 10:46:32,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#1 [2023-11-26 10:46:32,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#2 [2023-11-26 10:46:32,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#3 [2023-11-26 10:46:32,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#4 [2023-11-26 10:46:32,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#5 [2023-11-26 10:46:32,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#6 [2023-11-26 10:46:32,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#7 [2023-11-26 10:46:32,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#8 [2023-11-26 10:46:32,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#9 [2023-11-26 10:46:32,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#10 [2023-11-26 10:46:32,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#11 [2023-11-26 10:46:32,038 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#12 [2023-11-26 10:46:32,038 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#13 [2023-11-26 10:46:32,038 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#14 [2023-11-26 10:46:32,038 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#15 [2023-11-26 10:46:32,038 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#16 [2023-11-26 10:46:32,038 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#17 [2023-11-26 10:46:32,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#18 [2023-11-26 10:46:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2023-11-26 10:46:32,039 INFO L138 BoogieDeclarations]: Found implementation of procedure _IO_getc [2023-11-26 10:46:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-26 10:46:32,039 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-26 10:46:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-26 10:46:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:46:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-26 10:46:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-26 10:46:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-26 10:46:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-26 10:46:32,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-26 10:46:32,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-26 10:46:32,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-26 10:46:32,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-26 10:46:32,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-26 10:46:32,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-26 10:46:32,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-26 10:46:32,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-26 10:46:32,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-26 10:46:32,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-11-26 10:46:32,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2023-11-26 10:46:32,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2023-11-26 10:46:32,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2023-11-26 10:46:32,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2023-11-26 10:46:32,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2023-11-26 10:46:32,045 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-26 10:46:32,045 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-26 10:46:32,046 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-26 10:46:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-26 10:46:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-26 10:46:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-26 10:46:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-26 10:46:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-26 10:46:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-26 10:46:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-26 10:46:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-26 10:46:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-26 10:46:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-26 10:46:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-26 10:46:32,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-26 10:46:32,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-26 10:46:32,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-26 10:46:32,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-26 10:46:32,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2023-11-26 10:46:32,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2023-11-26 10:46:32,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2023-11-26 10:46:32,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2023-11-26 10:46:32,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 10:46:32,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 10:46:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 10:46:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 10:46:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 10:46:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 10:46:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 10:46:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 10:46:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-26 10:46:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-26 10:46:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-26 10:46:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-26 10:46:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-26 10:46:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-26 10:46:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-26 10:46:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-26 10:46:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-26 10:46:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-26 10:46:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-26 10:46:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:46:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-11-26 10:46:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-26 10:46:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:46:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 10:46:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 10:46:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 10:46:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 10:46:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 10:46:32,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 10:46:32,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 10:46:32,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-26 10:46:32,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-26 10:46:32,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-26 10:46:32,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-26 10:46:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-26 10:46:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-26 10:46:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-26 10:46:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-26 10:46:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-26 10:46:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-26 10:46:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-26 10:46:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-26 10:46:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:46:32,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:46:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2023-11-26 10:46:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2023-11-26 10:46:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2023-11-26 10:46:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2023-11-26 10:46:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2023-11-26 10:46:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2023-11-26 10:46:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2023-11-26 10:46:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2023-11-26 10:46:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2023-11-26 10:46:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2023-11-26 10:46:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2023-11-26 10:46:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2023-11-26 10:46:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2023-11-26 10:46:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2023-11-26 10:46:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#14 [2023-11-26 10:46:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#15 [2023-11-26 10:46:32,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#16 [2023-11-26 10:46:32,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#17 [2023-11-26 10:46:32,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#18 [2023-11-26 10:46:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2023-11-26 10:46:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2023-11-26 10:46:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2023-11-26 10:46:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2023-11-26 10:46:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2023-11-26 10:46:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2023-11-26 10:46:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2023-11-26 10:46:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2023-11-26 10:46:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2023-11-26 10:46:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2023-11-26 10:46:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2023-11-26 10:46:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2023-11-26 10:46:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2023-11-26 10:46:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2023-11-26 10:46:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#14 [2023-11-26 10:46:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#15 [2023-11-26 10:46:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#16 [2023-11-26 10:46:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#17 [2023-11-26 10:46:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#18 [2023-11-26 10:46:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-26 10:46:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-26 10:46:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure getopt [2023-11-26 10:46:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getopt [2023-11-26 10:46:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-26 10:46:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-26 10:46:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-26 10:46:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-26 10:46:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-26 10:46:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-26 10:46:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-26 10:46:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-26 10:46:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-26 10:46:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-26 10:46:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-26 10:46:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-26 10:46:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-26 10:46:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-11-26 10:46:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2023-11-26 10:46:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2023-11-26 10:46:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2023-11-26 10:46:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2023-11-26 10:46:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2023-11-26 10:46:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-26 10:46:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-26 10:46:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-26 10:46:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-26 10:46:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-26 10:46:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-26 10:46:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-26 10:46:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-26 10:46:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-26 10:46:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-26 10:46:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-26 10:46:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-26 10:46:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-26 10:46:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-26 10:46:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-26 10:46:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2023-11-26 10:46:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2023-11-26 10:46:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2023-11-26 10:46:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2023-11-26 10:46:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2023-11-26 10:46:32,085 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2023-11-26 10:46:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-26 10:46:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:46:32,086 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:46:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:46:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 10:46:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 10:46:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 10:46:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 10:46:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 10:46:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 10:46:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 10:46:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-26 10:46:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-26 10:46:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-26 10:46:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-26 10:46:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-26 10:46:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-26 10:46:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-26 10:46:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-26 10:46:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-26 10:46:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-26 10:46:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-26 10:46:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-26 10:46:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-26 10:46:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2023-11-26 10:46:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-26 10:46:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:46:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:46:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 10:46:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 10:46:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 10:46:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 10:46:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 10:46:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 10:46:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-26 10:46:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-26 10:46:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-26 10:46:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-26 10:46:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-26 10:46:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-26 10:46:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-26 10:46:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-26 10:46:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-26 10:46:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-26 10:46:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-26 10:46:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc_fgets [2023-11-26 10:46:32,093 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc_fgets [2023-11-26 10:46:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-26 10:46:32,093 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-26 10:46:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:46:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:46:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:46:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 10:46:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 10:46:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 10:46:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 10:46:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 10:46:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-26 10:46:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-26 10:46:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-26 10:46:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-26 10:46:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-26 10:46:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-26 10:46:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-26 10:46:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-26 10:46:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-26 10:46:32,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-26 10:46:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-26 10:46:32,776 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:46:32,793 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:46:34,499 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:46:34,654 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:46:34,654 INFO L309 CfgBuilder]: Removed 36 assume(true) statements. [2023-11-26 10:46:34,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:34 BoogieIcfgContainer [2023-11-26 10:46:34,656 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:46:34,659 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:46:34,659 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:46:34,662 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:46:34,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:46:29" (1/3) ... [2023-11-26 10:46:34,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50703146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:34, skipping insertion in model container [2023-11-26 10:46:34,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (2/3) ... [2023-11-26 10:46:34,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50703146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:34, skipping insertion in model container [2023-11-26 10:46:34,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:34" (3/3) ... [2023-11-26 10:46:34,667 INFO L112 eAbstractionObserver]: Analyzing ICFG head-3.i [2023-11-26 10:46:34,686 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:46:34,686 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 52 error locations. [2023-11-26 10:46:34,756 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:46:34,768 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=LoopHeads, 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;@649ff695, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:46:34,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2023-11-26 10:46:34,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 371 states, 276 states have (on average 1.6702898550724639) internal successors, (461), 328 states have internal predecessors, (461), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-26 10:46:34,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 10:46:34,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:34,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 10:46:34,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:34,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:34,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1496412, now seen corresponding path program 1 times [2023-11-26 10:46:34,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:34,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503499084] [2023-11-26 10:46:34,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:34,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:35,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:35,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:35,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503499084] [2023-11-26 10:46:35,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503499084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:35,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:35,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:46:35,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063675882] [2023-11-26 10:46:35,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:35,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:35,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:35,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:35,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:35,373 INFO L87 Difference]: Start difference. First operand has 371 states, 276 states have (on average 1.6702898550724639) internal successors, (461), 328 states have internal predecessors, (461), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:35,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:35,542 INFO L93 Difference]: Finished difference Result 729 states and 1056 transitions. [2023-11-26 10:46:35,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:35,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-26 10:46:35,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:35,560 INFO L225 Difference]: With dead ends: 729 [2023-11-26 10:46:35,560 INFO L226 Difference]: Without dead ends: 359 [2023-11-26 10:46:35,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:35,578 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 1 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:35,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 892 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:46:35,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-11-26 10:46:35,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-11-26 10:46:35,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 269 states have (on average 1.5724907063197027) internal successors, (423), 322 states have internal predecessors, (423), 31 states have call successors, (31), 12 states have call predecessors, (31), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 10:46:35,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 479 transitions. [2023-11-26 10:46:35,689 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 479 transitions. Word has length 3 [2023-11-26 10:46:35,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:35,690 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 479 transitions. [2023-11-26 10:46:35,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:35,692 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 479 transitions. [2023-11-26 10:46:35,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 10:46:35,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:35,692 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-26 10:46:35,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:46:35,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:35,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:35,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1630780825, now seen corresponding path program 1 times [2023-11-26 10:46:35,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:35,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241763897] [2023-11-26 10:46:35,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:35,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:35,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:35,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:35,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241763897] [2023-11-26 10:46:35,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241763897] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:46:35,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761908589] [2023-11-26 10:46:35,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:35,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:46:35,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:35,896 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:46:35,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:46:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:36,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:46:36,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:36,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:36,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:46:36,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761908589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:36,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:46:36,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-26 10:46:36,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827588253] [2023-11-26 10:46:36,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:36,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:46:36,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:36,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:46:36,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:46:36,422 INFO L87 Difference]: Start difference. First operand 359 states and 479 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:36,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:36,546 INFO L93 Difference]: Finished difference Result 359 states and 479 transitions. [2023-11-26 10:46:36,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:46:36,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-26 10:46:36,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:36,550 INFO L225 Difference]: With dead ends: 359 [2023-11-26 10:46:36,550 INFO L226 Difference]: Without dead ends: 358 [2023-11-26 10:46:36,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:46:36,552 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 5 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:36,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 885 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:46:36,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-26 10:46:36,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2023-11-26 10:46:36,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 269 states have (on average 1.5687732342007434) internal successors, (422), 321 states have internal predecessors, (422), 31 states have call successors, (31), 12 states have call predecessors, (31), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 10:46:36,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 478 transitions. [2023-11-26 10:46:36,571 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 478 transitions. Word has length 6 [2023-11-26 10:46:36,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:36,571 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 478 transitions. [2023-11-26 10:46:36,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:36,572 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 478 transitions. [2023-11-26 10:46:36,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 10:46:36,572 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:36,572 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-26 10:46:36,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:36,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:46:36,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:36,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:36,781 INFO L85 PathProgramCache]: Analyzing trace with hash -985401127, now seen corresponding path program 1 times [2023-11-26 10:46:36,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:36,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862519661] [2023-11-26 10:46:36,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:36,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:36,907 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:46:36,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:36,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862519661] [2023-11-26 10:46:36,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862519661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:36,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:36,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:36,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936158786] [2023-11-26 10:46:36,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:36,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:36,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:36,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:36,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:36,910 INFO L87 Difference]: Start difference. First operand 358 states and 478 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:36,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:36,997 INFO L93 Difference]: Finished difference Result 358 states and 478 transitions. [2023-11-26 10:46:36,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:36,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-26 10:46:36,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:37,000 INFO L225 Difference]: With dead ends: 358 [2023-11-26 10:46:37,000 INFO L226 Difference]: Without dead ends: 357 [2023-11-26 10:46:37,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:37,002 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 0 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:37,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 886 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:46:37,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-11-26 10:46:37,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 355. [2023-11-26 10:46:37,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 267 states have (on average 1.5692883895131087) internal successors, (419), 318 states have internal predecessors, (419), 31 states have call successors, (31), 12 states have call predecessors, (31), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 10:46:37,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 475 transitions. [2023-11-26 10:46:37,017 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 475 transitions. Word has length 7 [2023-11-26 10:46:37,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:37,018 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 475 transitions. [2023-11-26 10:46:37,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:37,018 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 475 transitions. [2023-11-26 10:46:37,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 10:46:37,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:37,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:37,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:46:37,020 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:37,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:37,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1143367425, now seen corresponding path program 1 times [2023-11-26 10:46:37,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:37,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821909427] [2023-11-26 10:46:37,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:37,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:37,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:46:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:37,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:37,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:37,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821909427] [2023-11-26 10:46:37,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821909427] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:46:37,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187208400] [2023-11-26 10:46:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:37,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:46:37,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:37,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:46:37,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:46:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:37,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:46:37,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:37,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:46:37,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:46:37,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187208400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:37,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:46:37,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-26 10:46:37,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136848467] [2023-11-26 10:46:37,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:37,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:37,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:37,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:37,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:46:37,716 INFO L87 Difference]: Start difference. First operand 355 states and 475 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:37,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:37,819 INFO L93 Difference]: Finished difference Result 355 states and 475 transitions. [2023-11-26 10:46:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:37,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-26 10:46:37,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:37,822 INFO L225 Difference]: With dead ends: 355 [2023-11-26 10:46:37,823 INFO L226 Difference]: Without dead ends: 353 [2023-11-26 10:46:37,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:46:37,824 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 200 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:37,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 681 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:46:37,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-26 10:46:37,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2023-11-26 10:46:37,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 267 states have (on average 1.5617977528089888) internal successors, (417), 316 states have internal predecessors, (417), 31 states have call successors, (31), 12 states have call predecessors, (31), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 10:46:37,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 473 transitions. [2023-11-26 10:46:37,847 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 473 transitions. Word has length 12 [2023-11-26 10:46:37,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:37,848 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 473 transitions. [2023-11-26 10:46:37,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:37,849 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 473 transitions. [2023-11-26 10:46:37,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 10:46:37,849 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:37,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:37,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-26 10:46:38,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:46:38,058 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:38,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:38,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1084652666, now seen corresponding path program 1 times [2023-11-26 10:46:38,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:38,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757982198] [2023-11-26 10:46:38,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:38,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:46:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:38,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:38,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:38,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757982198] [2023-11-26 10:46:38,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757982198] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:46:38,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749689326] [2023-11-26 10:46:38,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:38,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:46:38,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:38,263 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:46:38,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:46:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:38,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:46:38,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:38,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:38,703 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:46:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:38,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749689326] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:46:38,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:46:38,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-11-26 10:46:38,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063512155] [2023-11-26 10:46:38,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:46:38,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:46:38,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:38,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:46:38,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:46:38,736 INFO L87 Difference]: Start difference. First operand 353 states and 473 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:46:38,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:38,897 INFO L93 Difference]: Finished difference Result 710 states and 952 transitions. [2023-11-26 10:46:38,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:38,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2023-11-26 10:46:38,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:38,901 INFO L225 Difference]: With dead ends: 710 [2023-11-26 10:46:38,901 INFO L226 Difference]: Without dead ends: 362 [2023-11-26 10:46:38,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:46:38,904 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 4 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:38,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1322 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:46:38,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-11-26 10:46:38,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2023-11-26 10:46:38,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 276 states have (on average 1.5434782608695652) internal successors, (426), 325 states have internal predecessors, (426), 31 states have call successors, (31), 12 states have call predecessors, (31), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 10:46:38,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 482 transitions. [2023-11-26 10:46:38,925 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 482 transitions. Word has length 13 [2023-11-26 10:46:38,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:38,926 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 482 transitions. [2023-11-26 10:46:38,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:46:38,926 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 482 transitions. [2023-11-26 10:46:38,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 10:46:38,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:38,927 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:38,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:46:39,142 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:39,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:39,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1694765673, now seen corresponding path program 2 times [2023-11-26 10:46:39,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:39,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116483689] [2023-11-26 10:46:39,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:39,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:39,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 10:46:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:39,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:39,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116483689] [2023-11-26 10:46:39,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116483689] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:46:39,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554575809] [2023-11-26 10:46:39,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:46:39,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:46:39,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,508 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:46:39,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 10:46:39,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:46:39,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:46:39,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:39,991 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 10:46:39,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:46:39,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554575809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:39,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:46:39,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-26 10:46:39,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987445171] [2023-11-26 10:46:39,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:39,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:46:39,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:39,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:46:39,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-26 10:46:39,993 INFO L87 Difference]: Start difference. First operand 362 states and 482 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:40,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:40,189 INFO L93 Difference]: Finished difference Result 362 states and 482 transitions. [2023-11-26 10:46:40,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:46:40,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-11-26 10:46:40,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:40,192 INFO L225 Difference]: With dead ends: 362 [2023-11-26 10:46:40,192 INFO L226 Difference]: Without dead ends: 360 [2023-11-26 10:46:40,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-26 10:46:40,194 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 199 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:40,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 1520 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:46:40,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-11-26 10:46:40,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2023-11-26 10:46:40,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 276 states have (on average 1.536231884057971) internal successors, (424), 323 states have internal predecessors, (424), 31 states have call successors, (31), 12 states have call predecessors, (31), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 10:46:40,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 480 transitions. [2023-11-26 10:46:40,212 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 480 transitions. Word has length 22 [2023-11-26 10:46:40,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:40,213 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 480 transitions. [2023-11-26 10:46:40,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:40,213 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 480 transitions. [2023-11-26 10:46:40,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-26 10:46:40,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:40,214 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:40,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:40,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 10:46:40,422 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:40,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:40,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1458141839, now seen corresponding path program 1 times [2023-11-26 10:46:40,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:40,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001764612] [2023-11-26 10:46:40,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:40,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:40,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 10:46:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:40,615 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 10:46:40,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:40,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001764612] [2023-11-26 10:46:40,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001764612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:40,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:40,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:40,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489473682] [2023-11-26 10:46:40,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:40,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:40,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:40,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:40,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:40,618 INFO L87 Difference]: Start difference. First operand 360 states and 480 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:40,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:40,727 INFO L93 Difference]: Finished difference Result 703 states and 944 transitions. [2023-11-26 10:46:40,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:40,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2023-11-26 10:46:40,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:40,731 INFO L225 Difference]: With dead ends: 703 [2023-11-26 10:46:40,731 INFO L226 Difference]: Without dead ends: 363 [2023-11-26 10:46:40,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:40,735 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 1 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:40,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 875 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:46:40,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-26 10:46:40,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2023-11-26 10:46:40,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 279 states have (on average 1.5304659498207884) internal successors, (427), 326 states have internal predecessors, (427), 31 states have call successors, (31), 12 states have call predecessors, (31), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 10:46:40,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 483 transitions. [2023-11-26 10:46:40,756 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 483 transitions. Word has length 27 [2023-11-26 10:46:40,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:40,757 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 483 transitions. [2023-11-26 10:46:40,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:40,757 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 483 transitions. [2023-11-26 10:46:40,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-26 10:46:40,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:40,759 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:40,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:46:40,760 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:40,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:40,760 INFO L85 PathProgramCache]: Analyzing trace with hash -203416250, now seen corresponding path program 1 times [2023-11-26 10:46:40,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:40,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286346318] [2023-11-26 10:46:40,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:40,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:40,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 10:46:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:40,993 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 10:46:40,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:40,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286346318] [2023-11-26 10:46:40,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286346318] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:46:40,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736144742] [2023-11-26 10:46:40,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:40,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:46:40,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:40,995 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:46:41,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 10:46:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:41,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:46:41,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:41,524 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 10:46:41,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:46:41,630 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 10:46:41,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736144742] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:46:41,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:46:41,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-11-26 10:46:41,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581324660] [2023-11-26 10:46:41,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:46:41,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 10:46:41,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:41,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 10:46:41,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 10:46:41,632 INFO L87 Difference]: Start difference. First operand 363 states and 483 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 10:46:41,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:41,901 INFO L93 Difference]: Finished difference Result 729 states and 975 transitions. [2023-11-26 10:46:41,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 10:46:41,902 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-11-26 10:46:41,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:41,905 INFO L225 Difference]: With dead ends: 729 [2023-11-26 10:46:41,905 INFO L226 Difference]: Without dead ends: 380 [2023-11-26 10:46:41,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 10:46:41,907 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 7 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:41,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2594 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:46:41,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-11-26 10:46:41,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2023-11-26 10:46:41,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 297 states have (on average 1.494949494949495) internal successors, (444), 343 states have internal predecessors, (444), 31 states have call successors, (31), 12 states have call predecessors, (31), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 10:46:41,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 500 transitions. [2023-11-26 10:46:41,926 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 500 transitions. Word has length 30 [2023-11-26 10:46:41,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:41,927 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 500 transitions. [2023-11-26 10:46:41,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 10:46:41,927 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 500 transitions. [2023-11-26 10:46:41,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 10:46:41,929 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:41,929 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:41,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:42,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:46:42,137 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:42,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:42,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1121609842, now seen corresponding path program 1 times [2023-11-26 10:46:42,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:42,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669241093] [2023-11-26 10:46:42,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:42,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:42,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:46:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:42,399 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-26 10:46:42,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:42,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669241093] [2023-11-26 10:46:42,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669241093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:42,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:42,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:42,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966553153] [2023-11-26 10:46:42,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:42,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:42,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:42,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:42,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:42,402 INFO L87 Difference]: Start difference. First operand 380 states and 500 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:42,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:42,491 INFO L93 Difference]: Finished difference Result 380 states and 500 transitions. [2023-11-26 10:46:42,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:42,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-26 10:46:42,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:42,496 INFO L225 Difference]: With dead ends: 380 [2023-11-26 10:46:42,496 INFO L226 Difference]: Without dead ends: 379 [2023-11-26 10:46:42,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:42,499 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 0 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:42,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 873 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:46:42,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-11-26 10:46:42,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 377. [2023-11-26 10:46:42,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 295 states have (on average 1.494915254237288) internal successors, (441), 340 states have internal predecessors, (441), 31 states have call successors, (31), 12 states have call predecessors, (31), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 10:46:42,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 497 transitions. [2023-11-26 10:46:42,522 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 497 transitions. Word has length 49 [2023-11-26 10:46:42,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:42,523 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 497 transitions. [2023-11-26 10:46:42,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:42,524 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 497 transitions. [2023-11-26 10:46:42,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 10:46:42,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:42,531 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:42,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:46:42,531 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:42,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:42,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1121611571, now seen corresponding path program 1 times [2023-11-26 10:46:42,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:42,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178983309] [2023-11-26 10:46:42,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:42,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:42,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:46:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:42,853 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-26 10:46:42,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:42,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178983309] [2023-11-26 10:46:42,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178983309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:42,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:42,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:42,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158671592] [2023-11-26 10:46:42,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:42,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:42,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:42,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:42,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:42,859 INFO L87 Difference]: Start difference. First operand 377 states and 497 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:42,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:42,976 INFO L93 Difference]: Finished difference Result 388 states and 510 transitions. [2023-11-26 10:46:42,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:42,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-26 10:46:42,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:42,980 INFO L225 Difference]: With dead ends: 388 [2023-11-26 10:46:42,980 INFO L226 Difference]: Without dead ends: 386 [2023-11-26 10:46:42,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:42,981 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 2 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:42,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 868 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:46:42,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-11-26 10:46:42,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 385. [2023-11-26 10:46:42,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 303 states have (on average 1.4884488448844884) internal successors, (451), 348 states have internal predecessors, (451), 31 states have call successors, (31), 12 states have call predecessors, (31), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 10:46:43,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 507 transitions. [2023-11-26 10:46:43,003 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 507 transitions. Word has length 49 [2023-11-26 10:46:43,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:43,005 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 507 transitions. [2023-11-26 10:46:43,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:43,005 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 507 transitions. [2023-11-26 10:46:43,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 10:46:43,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:43,007 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:43,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:46:43,008 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:43,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:43,009 INFO L85 PathProgramCache]: Analyzing trace with hash 729002246, now seen corresponding path program 1 times [2023-11-26 10:46:43,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:43,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603451003] [2023-11-26 10:46:43,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:43,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:43,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:43,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:46:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:43,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 10:46:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:43,427 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 10:46:43,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:43,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603451003] [2023-11-26 10:46:43,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603451003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:43,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:43,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:46:43,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962174645] [2023-11-26 10:46:43,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:43,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:46:43,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:43,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:46:43,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:46:43,430 INFO L87 Difference]: Start difference. First operand 385 states and 507 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:46:44,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:44,937 INFO L93 Difference]: Finished difference Result 1074 states and 1449 transitions. [2023-11-26 10:46:44,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 10:46:44,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2023-11-26 10:46:44,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:44,946 INFO L225 Difference]: With dead ends: 1074 [2023-11-26 10:46:44,946 INFO L226 Difference]: Without dead ends: 751 [2023-11-26 10:46:44,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:46:44,949 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 894 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:44,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 1060 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-26 10:46:44,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-11-26 10:46:44,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 698. [2023-11-26 10:46:44,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 572 states have (on average 1.5174825174825175) internal successors, (868), 625 states have internal predecessors, (868), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (53), 50 states have call predecessors, (53), 50 states have call successors, (53) [2023-11-26 10:46:45,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 983 transitions. [2023-11-26 10:46:45,005 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 983 transitions. Word has length 56 [2023-11-26 10:46:45,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:45,005 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 983 transitions. [2023-11-26 10:46:45,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:46:45,005 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 983 transitions. [2023-11-26 10:46:45,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 10:46:45,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:45,008 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:45,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:46:45,008 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:45,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:45,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1409060616, now seen corresponding path program 1 times [2023-11-26 10:46:45,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:45,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7842471] [2023-11-26 10:46:45,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:45,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:46,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:46:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:46,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 10:46:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 10:46:46,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:46,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7842471] [2023-11-26 10:46:46,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7842471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:46,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:46,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:46:46,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676802054] [2023-11-26 10:46:46,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:46,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:46:46,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:46,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:46:46,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:46:46,280 INFO L87 Difference]: Start difference. First operand 698 states and 983 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:46:47,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:47,873 INFO L93 Difference]: Finished difference Result 1346 states and 1910 transitions. [2023-11-26 10:46:47,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:46:47,877 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2023-11-26 10:46:47,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:47,882 INFO L225 Difference]: With dead ends: 1346 [2023-11-26 10:46:47,882 INFO L226 Difference]: Without dead ends: 704 [2023-11-26 10:46:47,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:46:47,886 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 419 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:47,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 1090 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-26 10:46:47,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2023-11-26 10:46:47,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 698. [2023-11-26 10:46:47,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 572 states have (on average 1.5157342657342658) internal successors, (867), 625 states have internal predecessors, (867), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (53), 50 states have call predecessors, (53), 50 states have call successors, (53) [2023-11-26 10:46:47,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 982 transitions. [2023-11-26 10:46:47,930 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 982 transitions. Word has length 56 [2023-11-26 10:46:47,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:47,930 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 982 transitions. [2023-11-26 10:46:47,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:46:47,930 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 982 transitions. [2023-11-26 10:46:47,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 10:46:47,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:47,931 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:47,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 10:46:47,932 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:47,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:47,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1733262198, now seen corresponding path program 1 times [2023-11-26 10:46:47,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:47,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809438836] [2023-11-26 10:46:47,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:47,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:48,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:46:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 10:46:48,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:48,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809438836] [2023-11-26 10:46:48,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809438836] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:46:48,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437447320] [2023-11-26 10:46:48,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:48,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:46:48,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:48,161 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:46:48,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 10:46:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:48,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:46:48,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:48,725 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 10:46:48,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:46:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 10:46:48,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437447320] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:46:48,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:46:48,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-26 10:46:48,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643626774] [2023-11-26 10:46:48,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:46:48,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:46:48,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:48,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:46:48,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:46:48,751 INFO L87 Difference]: Start difference. First operand 698 states and 982 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:48,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:48,960 INFO L93 Difference]: Finished difference Result 1371 states and 1942 transitions. [2023-11-26 10:46:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:48,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2023-11-26 10:46:48,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:48,966 INFO L225 Difference]: With dead ends: 1371 [2023-11-26 10:46:48,966 INFO L226 Difference]: Without dead ends: 716 [2023-11-26 10:46:48,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:46:48,970 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 4 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:48,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2178 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:46:48,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-11-26 10:46:49,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2023-11-26 10:46:49,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 590 states have (on average 1.5) internal successors, (885), 643 states have internal predecessors, (885), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (53), 50 states have call predecessors, (53), 50 states have call successors, (53) [2023-11-26 10:46:49,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1000 transitions. [2023-11-26 10:46:49,013 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1000 transitions. Word has length 57 [2023-11-26 10:46:49,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:49,013 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 1000 transitions. [2023-11-26 10:46:49,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:49,014 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1000 transitions. [2023-11-26 10:46:49,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-26 10:46:49,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:49,015 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:49,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:49,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 10:46:49,233 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:49,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:49,233 INFO L85 PathProgramCache]: Analyzing trace with hash -2102117526, now seen corresponding path program 1 times [2023-11-26 10:46:49,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:49,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104051320] [2023-11-26 10:46:49,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:49,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:49,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:46:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:49,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 10:46:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:49,630 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 10:46:49,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:49,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104051320] [2023-11-26 10:46:49,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104051320] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:46:49,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362126332] [2023-11-26 10:46:49,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:49,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:46:49,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:49,633 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:46:49,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 10:46:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:50,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:46:50,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 10:46:50,270 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:46:50,396 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 10:46:50,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362126332] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:46:50,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:46:50,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2023-11-26 10:46:50,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704744863] [2023-11-26 10:46:50,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:46:50,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 10:46:50,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:50,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 10:46:50,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2023-11-26 10:46:50,400 INFO L87 Difference]: Start difference. First operand 716 states and 1000 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 13 states have internal predecessors, (67), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 10:46:51,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:51,770 INFO L93 Difference]: Finished difference Result 1422 states and 1999 transitions. [2023-11-26 10:46:51,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 10:46:51,771 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 13 states have internal predecessors, (67), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 73 [2023-11-26 10:46:51,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:51,776 INFO L225 Difference]: With dead ends: 1422 [2023-11-26 10:46:51,777 INFO L226 Difference]: Without dead ends: 758 [2023-11-26 10:46:51,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2023-11-26 10:46:51,781 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 221 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:51,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1088 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-26 10:46:51,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2023-11-26 10:46:51,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 752. [2023-11-26 10:46:51,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 626 states have (on average 1.4712460063897763) internal successors, (921), 679 states have internal predecessors, (921), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (53), 50 states have call predecessors, (53), 50 states have call successors, (53) [2023-11-26 10:46:51,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1036 transitions. [2023-11-26 10:46:51,828 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1036 transitions. Word has length 73 [2023-11-26 10:46:51,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:51,828 INFO L495 AbstractCegarLoop]: Abstraction has 752 states and 1036 transitions. [2023-11-26 10:46:51,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 13 states have internal predecessors, (67), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 10:46:51,829 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1036 transitions. [2023-11-26 10:46:51,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-26 10:46:51,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:51,830 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:51,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-26 10:46:52,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-26 10:46:52,039 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:52,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:52,039 INFO L85 PathProgramCache]: Analyzing trace with hash 272025354, now seen corresponding path program 2 times [2023-11-26 10:46:52,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:52,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827515627] [2023-11-26 10:46:52,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:52,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:52,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:46:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:52,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 10:46:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:52,968 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-26 10:46:52,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:52,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827515627] [2023-11-26 10:46:52,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827515627] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:46:52,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089685590] [2023-11-26 10:46:52,969 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:46:52,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:46:52,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:52,970 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:46:52,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 10:46:53,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 10:46:53,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:46:53,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 10:46:53,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:54,004 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 10:46:54,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:46:54,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089685590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:54,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:46:54,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2023-11-26 10:46:54,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773425178] [2023-11-26 10:46:54,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:54,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:46:54,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:54,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:46:54,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-11-26 10:46:54,007 INFO L87 Difference]: Start difference. First operand 752 states and 1036 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:46:56,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:56,166 INFO L93 Difference]: Finished difference Result 931 states and 1248 transitions. [2023-11-26 10:46:56,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 10:46:56,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 91 [2023-11-26 10:46:56,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:56,175 INFO L225 Difference]: With dead ends: 931 [2023-11-26 10:46:56,175 INFO L226 Difference]: Without dead ends: 930 [2023-11-26 10:46:56,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2023-11-26 10:46:56,181 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 1247 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:56,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 1336 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1645 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-26 10:46:56,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2023-11-26 10:46:56,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 785. [2023-11-26 10:46:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 658 states have (on average 1.4802431610942248) internal successors, (974), 711 states have internal predecessors, (974), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (55), 51 states have call predecessors, (55), 51 states have call successors, (55) [2023-11-26 10:46:56,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1092 transitions. [2023-11-26 10:46:56,247 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1092 transitions. Word has length 91 [2023-11-26 10:46:56,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:56,248 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 1092 transitions. [2023-11-26 10:46:56,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:46:56,249 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1092 transitions. [2023-11-26 10:46:56,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-26 10:46:56,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:56,255 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:56,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:56,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-26 10:46:56,464 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:56,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:56,465 INFO L85 PathProgramCache]: Analyzing trace with hash -157147539, now seen corresponding path program 1 times [2023-11-26 10:46:56,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:56,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123818594] [2023-11-26 10:46:56,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:56,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:57,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:46:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:57,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 10:46:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:57,243 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-26 10:46:57,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:57,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123818594] [2023-11-26 10:46:57,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123818594] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:46:57,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379206442] [2023-11-26 10:46:57,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:57,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:46:57,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:57,246 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:46:57,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 10:46:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:57,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:46:57,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:58,183 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 10:46:58,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:46:58,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379206442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:58,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:46:58,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2023-11-26 10:46:58,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551708967] [2023-11-26 10:46:58,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:58,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:46:58,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:58,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:46:58,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:46:58,186 INFO L87 Difference]: Start difference. First operand 785 states and 1092 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:46:59,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:59,356 INFO L93 Difference]: Finished difference Result 1360 states and 1911 transitions. [2023-11-26 10:46:59,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:59,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 92 [2023-11-26 10:46:59,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:59,362 INFO L225 Difference]: With dead ends: 1360 [2023-11-26 10:46:59,364 INFO L226 Difference]: Without dead ends: 724 [2023-11-26 10:46:59,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-26 10:46:59,368 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 928 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:59,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 438 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-26 10:46:59,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2023-11-26 10:46:59,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 724. [2023-11-26 10:46:59,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 603 states have (on average 1.4577114427860696) internal successors, (879), 652 states have internal predecessors, (879), 61 states have call successors, (61), 24 states have call predecessors, (61), 23 states have return successors, (51), 49 states have call predecessors, (51), 49 states have call successors, (51) [2023-11-26 10:46:59,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 991 transitions. [2023-11-26 10:46:59,418 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 991 transitions. Word has length 92 [2023-11-26 10:46:59,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:59,419 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 991 transitions. [2023-11-26 10:46:59,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:46:59,419 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 991 transitions. [2023-11-26 10:46:59,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-26 10:46:59,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:59,421 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:59,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:59,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-26 10:46:59,631 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:46:59,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:59,631 INFO L85 PathProgramCache]: Analyzing trace with hash -986056317, now seen corresponding path program 1 times [2023-11-26 10:46:59,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:59,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96308479] [2023-11-26 10:46:59,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:59,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:00,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:47:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:00,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 10:47:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:00,159 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 10:47:00,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:00,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96308479] [2023-11-26 10:47:00,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96308479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:00,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:00,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:47:00,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907738872] [2023-11-26 10:47:00,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:00,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:47:00,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:00,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:47:00,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:47:00,163 INFO L87 Difference]: Start difference. First operand 724 states and 991 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:47:01,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:01,612 INFO L93 Difference]: Finished difference Result 778 states and 1069 transitions. [2023-11-26 10:47:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:47:01,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2023-11-26 10:47:01,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:01,619 INFO L225 Difference]: With dead ends: 778 [2023-11-26 10:47:01,619 INFO L226 Difference]: Without dead ends: 776 [2023-11-26 10:47:01,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:47:01,620 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 247 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:01,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1025 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-26 10:47:01,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2023-11-26 10:47:01,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 732. [2023-11-26 10:47:01,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 611 states have (on average 1.4549918166939444) internal successors, (889), 660 states have internal predecessors, (889), 61 states have call successors, (61), 24 states have call predecessors, (61), 23 states have return successors, (51), 49 states have call predecessors, (51), 49 states have call successors, (51) [2023-11-26 10:47:01,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1001 transitions. [2023-11-26 10:47:01,671 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1001 transitions. Word has length 101 [2023-11-26 10:47:01,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:01,672 INFO L495 AbstractCegarLoop]: Abstraction has 732 states and 1001 transitions. [2023-11-26 10:47:01,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:47:01,672 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1001 transitions. [2023-11-26 10:47:01,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-26 10:47:01,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:01,674 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:01,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 10:47:01,675 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:47:01,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:01,675 INFO L85 PathProgramCache]: Analyzing trace with hash -985996735, now seen corresponding path program 1 times [2023-11-26 10:47:01,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:01,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579602376] [2023-11-26 10:47:01,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:01,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:01,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:47:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:02,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 10:47:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:02,065 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 10:47:02,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:02,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579602376] [2023-11-26 10:47:02,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579602376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:02,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:02,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:47:02,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939341510] [2023-11-26 10:47:02,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:02,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:47:02,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:02,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:47:02,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:47:02,069 INFO L87 Difference]: Start difference. First operand 732 states and 1001 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:47:03,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:03,541 INFO L93 Difference]: Finished difference Result 1540 states and 2161 transitions. [2023-11-26 10:47:03,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:47:03,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2023-11-26 10:47:03,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:03,550 INFO L225 Difference]: With dead ends: 1540 [2023-11-26 10:47:03,550 INFO L226 Difference]: Without dead ends: 924 [2023-11-26 10:47:03,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:47:03,554 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 330 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:03,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 1076 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-26 10:47:03,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2023-11-26 10:47:03,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 740. [2023-11-26 10:47:03,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 617 states have (on average 1.4505672609400324) internal successors, (895), 666 states have internal predecessors, (895), 61 states have call successors, (61), 24 states have call predecessors, (61), 25 states have return successors, (53), 51 states have call predecessors, (53), 49 states have call successors, (53) [2023-11-26 10:47:03,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1009 transitions. [2023-11-26 10:47:03,621 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1009 transitions. Word has length 101 [2023-11-26 10:47:03,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:03,621 INFO L495 AbstractCegarLoop]: Abstraction has 740 states and 1009 transitions. [2023-11-26 10:47:03,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:47:03,622 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1009 transitions. [2023-11-26 10:47:03,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-26 10:47:03,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:03,625 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:03,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 10:47:03,626 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting getoptErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:47:03,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:03,626 INFO L85 PathProgramCache]: Analyzing trace with hash 20305570, now seen corresponding path program 1 times [2023-11-26 10:47:03,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:03,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699943426] [2023-11-26 10:47:03,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:03,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:03,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:47:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:03,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-26 10:47:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:03,857 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-26 10:47:03,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:03,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699943426] [2023-11-26 10:47:03,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699943426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:03,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:03,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:47:03,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590129142] [2023-11-26 10:47:03,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:03,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:03,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:03,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:03,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:03,863 INFO L87 Difference]: Start difference. First operand 740 states and 1009 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:47:03,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:03,976 INFO L93 Difference]: Finished difference Result 1366 states and 1903 transitions. [2023-11-26 10:47:03,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:03,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 103 [2023-11-26 10:47:03,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:03,982 INFO L225 Difference]: With dead ends: 1366 [2023-11-26 10:47:03,983 INFO L226 Difference]: Without dead ends: 742 [2023-11-26 10:47:03,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:03,988 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 0 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:03,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 868 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:47:03,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-11-26 10:47:04,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2023-11-26 10:47:04,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 619 states have (on average 1.4491114701130856) internal successors, (897), 668 states have internal predecessors, (897), 61 states have call successors, (61), 24 states have call predecessors, (61), 25 states have return successors, (53), 51 states have call predecessors, (53), 49 states have call successors, (53) [2023-11-26 10:47:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1011 transitions. [2023-11-26 10:47:04,039 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1011 transitions. Word has length 103 [2023-11-26 10:47:04,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:04,039 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1011 transitions. [2023-11-26 10:47:04,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:47:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1011 transitions. [2023-11-26 10:47:04,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-26 10:47:04,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:04,041 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:04,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 10:47:04,042 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting getoptErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:47:04,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:04,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1668638172, now seen corresponding path program 1 times [2023-11-26 10:47:04,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:04,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22729307] [2023-11-26 10:47:04,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:04,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:04,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:47:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:04,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-26 10:47:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-26 10:47:04,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:04,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22729307] [2023-11-26 10:47:04,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22729307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:04,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:04,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:47:04,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544775231] [2023-11-26 10:47:04,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:04,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:04,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:04,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:04,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:04,272 INFO L87 Difference]: Start difference. First operand 742 states and 1011 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:47:04,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:04,421 INFO L93 Difference]: Finished difference Result 1371 states and 1909 transitions. [2023-11-26 10:47:04,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:04,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 103 [2023-11-26 10:47:04,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:04,427 INFO L225 Difference]: With dead ends: 1371 [2023-11-26 10:47:04,427 INFO L226 Difference]: Without dead ends: 745 [2023-11-26 10:47:04,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:04,430 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 0 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:04,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 868 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:47:04,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2023-11-26 10:47:04,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 745. [2023-11-26 10:47:04,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 622 states have (on average 1.4469453376205788) internal successors, (900), 671 states have internal predecessors, (900), 61 states have call successors, (61), 24 states have call predecessors, (61), 25 states have return successors, (53), 51 states have call predecessors, (53), 49 states have call successors, (53) [2023-11-26 10:47:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1014 transitions. [2023-11-26 10:47:04,479 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1014 transitions. Word has length 103 [2023-11-26 10:47:04,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:04,480 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 1014 transitions. [2023-11-26 10:47:04,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:47:04,480 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1014 transitions. [2023-11-26 10:47:04,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-26 10:47:04,482 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:04,482 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:04,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 10:47:04,482 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting getoptErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:47:04,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:04,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1670485214, now seen corresponding path program 1 times [2023-11-26 10:47:04,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:04,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154641135] [2023-11-26 10:47:04,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:04,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:04,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:47:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:04,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-26 10:47:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-26 10:47:04,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:04,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154641135] [2023-11-26 10:47:04,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154641135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:04,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:05,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:47:05,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070277676] [2023-11-26 10:47:05,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:05,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:47:05,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:05,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:47:05,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:47:05,003 INFO L87 Difference]: Start difference. First operand 745 states and 1014 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:47:05,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:05,455 INFO L93 Difference]: Finished difference Result 1119 states and 1476 transitions. [2023-11-26 10:47:05,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:47:05,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 103 [2023-11-26 10:47:05,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:05,463 INFO L225 Difference]: With dead ends: 1119 [2023-11-26 10:47:05,463 INFO L226 Difference]: Without dead ends: 1117 [2023-11-26 10:47:05,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:47:05,465 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 1217 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:05,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 1161 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 10:47:05,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-11-26 10:47:05,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1044. [2023-11-26 10:47:05,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 878 states have (on average 1.470387243735763) internal successors, (1291), 934 states have internal predecessors, (1291), 91 states have call successors, (91), 36 states have call predecessors, (91), 38 states have return successors, (80), 76 states have call predecessors, (80), 73 states have call successors, (80) [2023-11-26 10:47:05,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1462 transitions. [2023-11-26 10:47:05,535 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1462 transitions. Word has length 103 [2023-11-26 10:47:05,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:05,535 INFO L495 AbstractCegarLoop]: Abstraction has 1044 states and 1462 transitions. [2023-11-26 10:47:05,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:47:05,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1462 transitions. [2023-11-26 10:47:05,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-26 10:47:05,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:05,538 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:05,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 10:47:05,538 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:47:05,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:05,539 INFO L85 PathProgramCache]: Analyzing trace with hash -912920546, now seen corresponding path program 1 times [2023-11-26 10:47:05,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:05,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467225596] [2023-11-26 10:47:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:05,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:05,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:47:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 10:47:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:05,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:47:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:05,922 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-26 10:47:05,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:05,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467225596] [2023-11-26 10:47:05,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467225596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:05,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:05,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:47:05,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74768851] [2023-11-26 10:47:05,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:05,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:47:05,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:05,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:47:05,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:47:05,924 INFO L87 Difference]: Start difference. First operand 1044 states and 1462 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 10:47:06,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:06,940 INFO L93 Difference]: Finished difference Result 1999 states and 2837 transitions. [2023-11-26 10:47:06,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:47:06,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 106 [2023-11-26 10:47:06,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:06,949 INFO L225 Difference]: With dead ends: 1999 [2023-11-26 10:47:06,949 INFO L226 Difference]: Without dead ends: 1071 [2023-11-26 10:47:06,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:47:06,954 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 231 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:06,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 850 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 10:47:06,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-11-26 10:47:07,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1050. [2023-11-26 10:47:07,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 884 states have (on average 1.4671945701357465) internal successors, (1297), 940 states have internal predecessors, (1297), 91 states have call successors, (91), 36 states have call predecessors, (91), 38 states have return successors, (80), 76 states have call predecessors, (80), 73 states have call successors, (80) [2023-11-26 10:47:07,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1468 transitions. [2023-11-26 10:47:07,022 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1468 transitions. Word has length 106 [2023-11-26 10:47:07,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:07,023 INFO L495 AbstractCegarLoop]: Abstraction has 1050 states and 1468 transitions. [2023-11-26 10:47:07,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 10:47:07,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1468 transitions. [2023-11-26 10:47:07,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-26 10:47:07,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:07,025 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:07,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-26 10:47:07,025 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-26 10:47:07,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:07,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1977578595, now seen corresponding path program 1 times [2023-11-26 10:47:07,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:07,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020369801] [2023-11-26 10:47:07,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:07,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:07,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 10:47:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:07,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 10:47:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:08,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 10:47:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:08,031 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2023-11-26 10:47:08,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:08,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020369801] [2023-11-26 10:47:08,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020369801] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:47:08,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47413609] [2023-11-26 10:47:08,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:08,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:47:08,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:47:08,036 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:47:08,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b6bc1c-cd64-49cf-8195-70689471c6cc/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 10:47:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:08,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-26 10:47:08,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:47:09,323 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-26 10:47:09,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:47:09,693 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2023-11-26 10:47:09,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47413609] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:47:09,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:47:09,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 26 [2023-11-26 10:47:09,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756585337] [2023-11-26 10:47:09,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:47:09,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-26 10:47:09,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:09,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-26 10:47:09,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=556, Unknown=0, NotChecked=0, Total=650 [2023-11-26 10:47:09,696 INFO L87 Difference]: Start difference. First operand 1050 states and 1468 transitions. Second operand has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 23 states have internal predecessors, (96), 7 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8)