./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl --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 32bit --witnessprinter.graph.data.programhash 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:33:51,492 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:33:51,590 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:33:51,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:33:51,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:33:51,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:33:51,629 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:33:51,630 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:33:51,631 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:33:51,632 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:33:51,633 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:33:51,633 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:33:51,634 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:33:51,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:33:51,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:33:51,636 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:33:51,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:33:51,637 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:33:51,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:33:51,639 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:33:51,639 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:33:51,640 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:33:51,641 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:33:51,642 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:33:51,642 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:33:51,643 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:33:51,644 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:33:51,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:33:51,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:33:51,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:33:51,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:51,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:33:51,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:33:51,648 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:33:51,648 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:33:51,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:33:51,649 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:33:51,650 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:33:51,650 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:33:51,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:33:51,651 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:33:51,652 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_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2023-11-12 02:33:51,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:33:51,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:33:52,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:33:52,003 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:33:52,003 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:33:52,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2023-11-12 02:33:55,189 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:33:55,679 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:33:55,679 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2023-11-12 02:33:55,720 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/data/45da80ebc/83a90339e6d3423b8ebbb03e0f2e7525/FLAG319a8f759 [2023-11-12 02:33:55,738 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/data/45da80ebc/83a90339e6d3423b8ebbb03e0f2e7525 [2023-11-12 02:33:55,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:33:55,747 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:33:55,752 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:55,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:33:55,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:33:55,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:55" (1/1) ... [2023-11-12 02:33:55,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492143e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:55, skipping insertion in model container [2023-11-12 02:33:55,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:55" (1/1) ... [2023-11-12 02:33:55,868 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:33:57,541 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:57,599 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:33:57,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:58,092 WARN L672 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:33:58,100 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:33:58,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:58 WrapperNode [2023-11-12 02:33:58,102 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:58,103 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:58,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:33:58,104 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:33:58,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:58" (1/1) ... [2023-11-12 02:33:58,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:58" (1/1) ... [2023-11-12 02:33:58,314 INFO L138 Inliner]: procedures = 474, calls = 840, calls flagged for inlining = 55, calls inlined = 39, statements flattened = 1111 [2023-11-12 02:33:58,317 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:58,318 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:33:58,319 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:33:58,319 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:33:58,329 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:58" (1/1) ... [2023-11-12 02:33:58,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:58" (1/1) ... [2023-11-12 02:33:58,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:58" (1/1) ... [2023-11-12 02:33:58,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:58" (1/1) ... [2023-11-12 02:33:58,422 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:58" (1/1) ... [2023-11-12 02:33:58,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:58" (1/1) ... [2023-11-12 02:33:58,458 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:58" (1/1) ... [2023-11-12 02:33:58,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:58" (1/1) ... [2023-11-12 02:33:58,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:33:58,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:33:58,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:33:58,479 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:33:58,480 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:58" (1/1) ... [2023-11-12 02:33:58,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:58,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:58,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:33:58,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:33:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-12 02:33:58,567 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-12 02:33:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:33:58,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-12 02:33:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 02:33:58,567 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 02:33:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:33:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-12 02:33:58,568 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-12 02:33:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:33:58,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-12 02:33:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-12 02:33:58,569 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-12 02:33:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:33:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:33:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:33:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-12 02:33:58,571 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-12 02:33:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:33:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:33:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:33:58,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:33:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-12 02:33:58,572 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-12 02:33:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-12 02:33:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-12 02:33:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-12 02:33:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-12 02:33:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:33:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:33:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-12 02:33:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-12 02:33:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:33:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:33:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:33:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-12 02:33:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-12 02:33:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:33:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:33:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-12 02:33:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-12 02:33:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-12 02:33:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-12 02:33:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2023-11-12 02:33:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2023-11-12 02:33:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:33:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 02:33:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 02:33:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-12 02:33:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-12 02:33:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-12 02:33:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-12 02:33:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-12 02:33:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-12 02:33:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-12 02:33:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-12 02:33:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-12 02:33:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-12 02:33:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:33:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-12 02:33:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-12 02:33:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-12 02:33:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-12 02:33:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-11-12 02:33:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-11-12 02:33:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-12 02:33:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-12 02:33:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:33:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:33:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:33:59,053 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:33:59,057 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:34:01,518 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:34:01,529 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:34:01,529 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:34:01,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:34:01 BoogieIcfgContainer [2023-11-12 02:34:01,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:34:01,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:34:01,536 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:34:01,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:34:01,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:33:55" (1/3) ... [2023-11-12 02:34:01,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5878e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:34:01, skipping insertion in model container [2023-11-12 02:34:01,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:58" (2/3) ... [2023-11-12 02:34:01,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5878e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:34:01, skipping insertion in model container [2023-11-12 02:34:01,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:34:01" (3/3) ... [2023-11-12 02:34:01,543 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2023-11-12 02:34:01,564 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:34:01,564 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2023-11-12 02:34:01,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:34:01,636 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;@56c44dd7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:34:01,637 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-12 02:34:01,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 420 states, 294 states have (on average 1.4285714285714286) internal successors, (420), 321 states have internal predecessors, (420), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-12 02:34:01,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 02:34:01,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:01,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:01,654 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:01,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:01,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1638827084, now seen corresponding path program 1 times [2023-11-12 02:34:01,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:01,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144438108] [2023-11-12 02:34:01,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:01,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:02,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:02,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:02,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:02,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144438108] [2023-11-12 02:34:02,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144438108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:02,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:02,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:34:02,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539998513] [2023-11-12 02:34:02,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:02,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:34:02,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:02,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:34:02,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:34:02,466 INFO L87 Difference]: Start difference. First operand has 420 states, 294 states have (on average 1.4285714285714286) internal successors, (420), 321 states have internal predecessors, (420), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-12 02:34:03,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:03,899 INFO L93 Difference]: Finished difference Result 847 states and 1187 transitions. [2023-11-12 02:34:03,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:34:03,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 10 [2023-11-12 02:34:03,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:03,918 INFO L225 Difference]: With dead ends: 847 [2023-11-12 02:34:03,918 INFO L226 Difference]: Without dead ends: 424 [2023-11-12 02:34:03,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:34:03,929 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 108 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:03,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1628 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-12 02:34:03,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-11-12 02:34:04,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 411. [2023-11-12 02:34:04,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 290 states have (on average 1.396551724137931) internal successors, (405), 315 states have internal predecessors, (405), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-12 02:34:04,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 556 transitions. [2023-11-12 02:34:04,012 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 556 transitions. Word has length 10 [2023-11-12 02:34:04,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:04,013 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 556 transitions. [2023-11-12 02:34:04,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-12 02:34:04,014 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 556 transitions. [2023-11-12 02:34:04,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:34:04,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:04,015 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:04,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:34:04,016 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:04,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:04,017 INFO L85 PathProgramCache]: Analyzing trace with hash 597860424, now seen corresponding path program 1 times [2023-11-12 02:34:04,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:04,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119702219] [2023-11-12 02:34:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:04,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:04,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:04,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:04,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:04,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119702219] [2023-11-12 02:34:04,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119702219] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:34:04,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889963840] [2023-11-12 02:34:04,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:04,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:34:04,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:34:04,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:34:04,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:34:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:04,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:34:04,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:34:04,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:04,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:34:04,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889963840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:04,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:34:04,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2023-11-12 02:34:04,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726533085] [2023-11-12 02:34:04,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:04,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:34:04,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:04,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:34:04,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:34:04,901 INFO L87 Difference]: Start difference. First operand 411 states and 556 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-11-12 02:34:05,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:05,003 INFO L93 Difference]: Finished difference Result 416 states and 561 transitions. [2023-11-12 02:34:05,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:34:05,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 14 [2023-11-12 02:34:05,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:05,008 INFO L225 Difference]: With dead ends: 416 [2023-11-12 02:34:05,008 INFO L226 Difference]: Without dead ends: 415 [2023-11-12 02:34:05,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:34:05,011 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 11 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:05,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2158 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:34:05,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-11-12 02:34:05,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 410. [2023-11-12 02:34:05,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 290 states have (on average 1.393103448275862) internal successors, (404), 314 states have internal predecessors, (404), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-12 02:34:05,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 555 transitions. [2023-11-12 02:34:05,044 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 555 transitions. Word has length 14 [2023-11-12 02:34:05,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:05,045 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 555 transitions. [2023-11-12 02:34:05,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-11-12 02:34:05,045 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 555 transitions. [2023-11-12 02:34:05,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:34:05,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:05,046 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:05,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:34:05,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-12 02:34:05,255 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:05,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:05,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1353804316, now seen corresponding path program 1 times [2023-11-12 02:34:05,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:05,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020377084] [2023-11-12 02:34:05,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:05,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:05,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:05,543 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:34:05,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:05,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020377084] [2023-11-12 02:34:05,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020377084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:05,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:05,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:34:05,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837564746] [2023-11-12 02:34:05,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:05,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:34:05,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:05,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:34:05,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:34:05,546 INFO L87 Difference]: Start difference. First operand 410 states and 555 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-12 02:34:06,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:06,759 INFO L93 Difference]: Finished difference Result 418 states and 565 transitions. [2023-11-12 02:34:06,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:34:06,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 15 [2023-11-12 02:34:06,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:06,768 INFO L225 Difference]: With dead ends: 418 [2023-11-12 02:34:06,768 INFO L226 Difference]: Without dead ends: 417 [2023-11-12 02:34:06,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:34:06,777 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 106 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:06,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1574 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-12 02:34:06,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-11-12 02:34:06,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 406. [2023-11-12 02:34:06,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 287 states have (on average 1.3937282229965158) internal successors, (400), 310 states have internal predecessors, (400), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-12 02:34:06,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 551 transitions. [2023-11-12 02:34:06,832 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 551 transitions. Word has length 15 [2023-11-12 02:34:06,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:06,836 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 551 transitions. [2023-11-12 02:34:06,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-12 02:34:06,837 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 551 transitions. [2023-11-12 02:34:06,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 02:34:06,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:06,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:06,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:34:06,839 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:06,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:06,840 INFO L85 PathProgramCache]: Analyzing trace with hash -983333618, now seen corresponding path program 1 times [2023-11-12 02:34:06,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:06,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690382349] [2023-11-12 02:34:06,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:06,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:07,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:07,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:07,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:07,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690382349] [2023-11-12 02:34:07,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690382349] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:34:07,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516405908] [2023-11-12 02:34:07,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:07,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:34:07,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:34:07,163 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:34:07,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:34:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:07,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:34:07,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:34:07,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:07,591 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:34:07,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:07,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516405908] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:34:07,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:34:07,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2023-11-12 02:34:07,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426511450] [2023-11-12 02:34:07,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:34:07,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:34:07,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:07,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:34:07,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:34:07,649 INFO L87 Difference]: Start difference. First operand 406 states and 551 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:34:09,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:09,147 INFO L93 Difference]: Finished difference Result 824 states and 1116 transitions. [2023-11-12 02:34:09,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:34:09,148 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-11-12 02:34:09,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:09,153 INFO L225 Difference]: With dead ends: 824 [2023-11-12 02:34:09,154 INFO L226 Difference]: Without dead ends: 427 [2023-11-12 02:34:09,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:34:09,157 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 129 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:09,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 2839 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-12 02:34:09,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-12 02:34:09,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 414. [2023-11-12 02:34:09,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 295 states have (on average 1.383050847457627) internal successors, (408), 318 states have internal predecessors, (408), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-12 02:34:09,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 559 transitions. [2023-11-12 02:34:09,181 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 559 transitions. Word has length 16 [2023-11-12 02:34:09,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:09,182 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 559 transitions. [2023-11-12 02:34:09,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:34:09,182 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 559 transitions. [2023-11-12 02:34:09,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:34:09,183 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:09,183 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:09,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-12 02:34:09,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:34:09,391 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:09,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:09,392 INFO L85 PathProgramCache]: Analyzing trace with hash 740820230, now seen corresponding path program 2 times [2023-11-12 02:34:09,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:09,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933697561] [2023-11-12 02:34:09,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:09,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:09,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:09,687 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 02:34:09,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:09,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933697561] [2023-11-12 02:34:09,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933697561] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:09,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:09,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:34:09,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769640652] [2023-11-12 02:34:09,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:09,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:34:09,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:09,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:34:09,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:34:09,689 INFO L87 Difference]: Start difference. First operand 414 states and 559 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-12 02:34:10,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:10,789 INFO L93 Difference]: Finished difference Result 427 states and 574 transitions. [2023-11-12 02:34:10,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:34:10,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 24 [2023-11-12 02:34:10,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:10,793 INFO L225 Difference]: With dead ends: 427 [2023-11-12 02:34:10,793 INFO L226 Difference]: Without dead ends: 425 [2023-11-12 02:34:10,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:34:10,797 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 105 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:10,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1576 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-12 02:34:10,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-11-12 02:34:10,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 417. [2023-11-12 02:34:10,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 298 states have (on average 1.3791946308724832) internal successors, (411), 321 states have internal predecessors, (411), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-12 02:34:10,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 562 transitions. [2023-11-12 02:34:10,825 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 562 transitions. Word has length 24 [2023-11-12 02:34:10,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:10,826 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 562 transitions. [2023-11-12 02:34:10,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-12 02:34:10,826 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 562 transitions. [2023-11-12 02:34:10,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 02:34:10,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:10,827 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:10,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:34:10,828 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:10,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:10,828 INFO L85 PathProgramCache]: Analyzing trace with hash 530688130, now seen corresponding path program 1 times [2023-11-12 02:34:10,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:10,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768882529] [2023-11-12 02:34:10,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:10,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:11,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 02:34:11,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:11,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768882529] [2023-11-12 02:34:11,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768882529] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:34:11,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868304075] [2023-11-12 02:34:11,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:11,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:34:11,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:34:11,141 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:34:11,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:34:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:11,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:34:11,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:34:11,693 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:34:11,694 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:34:11,848 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:34:11,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868304075] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:34:11,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:34:11,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 20 [2023-11-12 02:34:11,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167410824] [2023-11-12 02:34:11,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:34:11,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-12 02:34:11,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:11,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-12 02:34:11,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-12 02:34:11,852 INFO L87 Difference]: Start difference. First operand 417 states and 562 transitions. Second operand has 20 states, 20 states have (on average 2.55) internal successors, (51), 19 states have internal predecessors, (51), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:34:13,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:13,822 INFO L93 Difference]: Finished difference Result 836 states and 1130 transitions. [2023-11-12 02:34:13,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-12 02:34:13,824 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 19 states have internal predecessors, (51), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-12 02:34:13,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:13,827 INFO L225 Difference]: With dead ends: 836 [2023-11-12 02:34:13,827 INFO L226 Difference]: Without dead ends: 436 [2023-11-12 02:34:13,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2023-11-12 02:34:13,830 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 134 mSDsluCounter, 4434 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 4892 SdHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:13,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 4892 Invalid, 1555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-12 02:34:13,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-11-12 02:34:13,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 428. [2023-11-12 02:34:13,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 311 states have (on average 1.3536977491961415) internal successors, (421), 332 states have internal predecessors, (421), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-12 02:34:13,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 572 transitions. [2023-11-12 02:34:13,863 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 572 transitions. Word has length 28 [2023-11-12 02:34:13,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:13,864 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 572 transitions. [2023-11-12 02:34:13,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 19 states have internal predecessors, (51), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:34:13,865 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 572 transitions. [2023-11-12 02:34:13,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-12 02:34:13,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:13,873 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 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] [2023-11-12 02:34:13,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:34:14,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:34:14,081 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:14,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:14,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1236121064, now seen corresponding path program 1 times [2023-11-12 02:34:14,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:14,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298860719] [2023-11-12 02:34:14,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:14,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:14,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:14,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:34:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:14,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:34:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:14,497 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-11-12 02:34:14,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:14,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298860719] [2023-11-12 02:34:14,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298860719] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:14,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:14,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:34:14,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607972081] [2023-11-12 02:34:14,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:14,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:34:14,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:14,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:34:14,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:34:14,500 INFO L87 Difference]: Start difference. First operand 428 states and 572 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:34:15,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:15,863 INFO L93 Difference]: Finished difference Result 759 states and 1025 transitions. [2023-11-12 02:34:15,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:34:15,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 58 [2023-11-12 02:34:15,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:15,870 INFO L225 Difference]: With dead ends: 759 [2023-11-12 02:34:15,870 INFO L226 Difference]: Without dead ends: 755 [2023-11-12 02:34:15,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:34:15,874 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 616 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:15,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1117 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-12 02:34:15,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2023-11-12 02:34:15,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 733. [2023-11-12 02:34:15,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 536 states have (on average 1.367537313432836) internal successors, (733), 561 states have internal predecessors, (733), 134 states have call successors, (134), 48 states have call predecessors, (134), 48 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-12 02:34:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1000 transitions. [2023-11-12 02:34:15,937 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1000 transitions. Word has length 58 [2023-11-12 02:34:15,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:15,938 INFO L495 AbstractCegarLoop]: Abstraction has 733 states and 1000 transitions. [2023-11-12 02:34:15,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:34:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1000 transitions. [2023-11-12 02:34:15,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-12 02:34:15,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:15,944 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 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] [2023-11-12 02:34:15,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:34:15,944 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:15,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:15,945 INFO L85 PathProgramCache]: Analyzing trace with hash -282485825, now seen corresponding path program 1 times [2023-11-12 02:34:15,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:15,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385885862] [2023-11-12 02:34:15,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:15,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:16,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:16,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:34:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:16,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-12 02:34:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:16,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:16,321 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-11-12 02:34:16,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:16,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385885862] [2023-11-12 02:34:16,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385885862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:16,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:16,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:34:16,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127585408] [2023-11-12 02:34:16,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:16,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:34:16,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:16,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:34:16,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:34:16,325 INFO L87 Difference]: Start difference. First operand 733 states and 1000 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:34:17,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:17,431 INFO L93 Difference]: Finished difference Result 1431 states and 1961 transitions. [2023-11-12 02:34:17,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:34:17,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 67 [2023-11-12 02:34:17,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:17,438 INFO L225 Difference]: With dead ends: 1431 [2023-11-12 02:34:17,438 INFO L226 Difference]: Without dead ends: 748 [2023-11-12 02:34:17,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:34:17,442 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 558 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:17,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 724 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-12 02:34:17,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-12 02:34:17,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 732. [2023-11-12 02:34:17,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 536 states have (on average 1.3619402985074627) internal successors, (730), 560 states have internal predecessors, (730), 134 states have call successors, (134), 48 states have call predecessors, (134), 48 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-12 02:34:17,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 997 transitions. [2023-11-12 02:34:17,495 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 997 transitions. Word has length 67 [2023-11-12 02:34:17,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:17,498 INFO L495 AbstractCegarLoop]: Abstraction has 732 states and 997 transitions. [2023-11-12 02:34:17,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:34:17,498 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 997 transitions. [2023-11-12 02:34:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-12 02:34:17,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:17,505 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:17,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:34:17,505 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:17,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:17,506 INFO L85 PathProgramCache]: Analyzing trace with hash 122762122, now seen corresponding path program 1 times [2023-11-12 02:34:17,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:17,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489971289] [2023-11-12 02:34:17,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:17,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:17,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:17,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:34:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:17,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-12 02:34:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:17,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:17,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:34:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:17,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:34:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:18,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-12 02:34:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:18,014 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-12 02:34:18,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:18,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489971289] [2023-11-12 02:34:18,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489971289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:18,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:18,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:34:18,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979750225] [2023-11-12 02:34:18,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:18,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:34:18,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:18,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:34:18,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:34:18,019 INFO L87 Difference]: Start difference. First operand 732 states and 997 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:34:19,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:19,268 INFO L93 Difference]: Finished difference Result 1711 states and 2350 transitions. [2023-11-12 02:34:19,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:34:19,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 87 [2023-11-12 02:34:19,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:19,276 INFO L225 Difference]: With dead ends: 1711 [2023-11-12 02:34:19,276 INFO L226 Difference]: Without dead ends: 1059 [2023-11-12 02:34:19,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:34:19,280 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 568 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:19,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 1557 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-12 02:34:19,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2023-11-12 02:34:19,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 1029. [2023-11-12 02:34:19,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 757 states have (on average 1.3672391017173051) internal successors, (1035), 784 states have internal predecessors, (1035), 191 states have call successors, (191), 69 states have call predecessors, (191), 69 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-12 02:34:19,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1416 transitions. [2023-11-12 02:34:19,352 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1416 transitions. Word has length 87 [2023-11-12 02:34:19,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:19,354 INFO L495 AbstractCegarLoop]: Abstraction has 1029 states and 1416 transitions. [2023-11-12 02:34:19,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:34:19,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1416 transitions. [2023-11-12 02:34:19,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-12 02:34:19,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:19,356 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:19,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:34:19,356 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:19,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:19,359 INFO L85 PathProgramCache]: Analyzing trace with hash 561719698, now seen corresponding path program 1 times [2023-11-12 02:34:19,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:19,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039216939] [2023-11-12 02:34:19,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:19,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:20,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:20,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:34:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:20,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-12 02:34:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:20,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:34:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:20,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:34:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:20,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-12 02:34:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:20,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-12 02:34:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:20,228 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:34:20,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:20,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039216939] [2023-11-12 02:34:20,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039216939] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:34:20,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653307791] [2023-11-12 02:34:20,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:20,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:34:20,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:34:20,231 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:34:20,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:34:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:20,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-12 02:34:20,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:34:20,876 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:34:20,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:34:21,140 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:34:21,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653307791] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:34:21,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:34:21,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 24 [2023-11-12 02:34:21,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103603934] [2023-11-12 02:34:21,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:34:21,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-12 02:34:21,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:21,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-12 02:34:21,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2023-11-12 02:34:21,144 INFO L87 Difference]: Start difference. First operand 1029 states and 1416 transitions. Second operand has 24 states, 24 states have (on average 4.333333333333333) internal successors, (104), 23 states have internal predecessors, (104), 2 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:34:22,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:22,914 INFO L93 Difference]: Finished difference Result 2061 states and 2842 transitions. [2023-11-12 02:34:22,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-12 02:34:22,915 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.333333333333333) internal successors, (104), 23 states have internal predecessors, (104), 2 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 96 [2023-11-12 02:34:22,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:22,924 INFO L225 Difference]: With dead ends: 2061 [2023-11-12 02:34:22,924 INFO L226 Difference]: Without dead ends: 1065 [2023-11-12 02:34:22,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 190 SyntacticMatches, 11 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=300, Invalid=756, Unknown=0, NotChecked=0, Total=1056 [2023-11-12 02:34:22,930 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 175 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 3614 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:22,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 3614 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-12 02:34:22,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2023-11-12 02:34:22,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1041. [2023-11-12 02:34:22,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 769 states have (on average 1.3615084525357608) internal successors, (1047), 796 states have internal predecessors, (1047), 191 states have call successors, (191), 69 states have call predecessors, (191), 69 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-12 02:34:23,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1428 transitions. [2023-11-12 02:34:23,007 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1428 transitions. Word has length 96 [2023-11-12 02:34:23,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:23,008 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1428 transitions. [2023-11-12 02:34:23,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.333333333333333) internal successors, (104), 23 states have internal predecessors, (104), 2 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:34:23,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1428 transitions. [2023-11-12 02:34:23,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-12 02:34:23,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:23,016 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:23,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:34:23,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8193bfbd-fd80-4662-a30b-845306215e26/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:34:23,224 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:23,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:23,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1414993030, now seen corresponding path program 2 times [2023-11-12 02:34:23,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:23,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331007886] [2023-11-12 02:34:23,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:23,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:23,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:23,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-12 02:34:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:23,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:34:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:23,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:23,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-12 02:34:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:23,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:34:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:23,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-12 02:34:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:23,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-12 02:34:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:23,668 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-11-12 02:34:23,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:23,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331007886] [2023-11-12 02:34:23,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331007886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:23,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:23,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:34:23,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975989990] [2023-11-12 02:34:23,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:23,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:34:23,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:23,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:34:23,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:34:23,671 INFO L87 Difference]: Start difference. First operand 1041 states and 1428 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 02:34:24,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:24,941 INFO L93 Difference]: Finished difference Result 1082 states and 1466 transitions. [2023-11-12 02:34:24,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:34:24,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 108 [2023-11-12 02:34:24,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:24,948 INFO L225 Difference]: With dead ends: 1082 [2023-11-12 02:34:24,948 INFO L226 Difference]: Without dead ends: 775 [2023-11-12 02:34:24,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:34:24,950 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 102 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:24,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1983 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-12 02:34:24,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2023-11-12 02:34:24,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 759. [2023-11-12 02:34:24,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 562 states have (on average 1.3398576512455516) internal successors, (753), 584 states have internal predecessors, (753), 134 states have call successors, (134), 51 states have call predecessors, (134), 51 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-12 02:34:24,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1020 transitions. [2023-11-12 02:34:24,996 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1020 transitions. Word has length 108 [2023-11-12 02:34:24,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:24,997 INFO L495 AbstractCegarLoop]: Abstraction has 759 states and 1020 transitions. [2023-11-12 02:34:24,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 02:34:24,997 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1020 transitions. [2023-11-12 02:34:24,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-12 02:34:24,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:24,999 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:24,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:34:24,999 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting cdev_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:25,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:25,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1866885013, now seen corresponding path program 1 times [2023-11-12 02:34:25,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:25,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602440958] [2023-11-12 02:34:25,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:25,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:25,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:25,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-12 02:34:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:25,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:34:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:25,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:25,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:34:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:25,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:34:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:25,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-12 02:34:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:25,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-12 02:34:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:25,601 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-11-12 02:34:25,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:25,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602440958] [2023-11-12 02:34:25,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602440958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:25,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:25,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:34:25,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550509170] [2023-11-12 02:34:25,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:25,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:34:25,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:25,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:34:25,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:34:25,606 INFO L87 Difference]: Start difference. First operand 759 states and 1020 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 02:34:26,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:26,939 INFO L93 Difference]: Finished difference Result 1735 states and 2320 transitions. [2023-11-12 02:34:26,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:34:26,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 112 [2023-11-12 02:34:26,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:26,948 INFO L225 Difference]: With dead ends: 1735 [2023-11-12 02:34:26,948 INFO L226 Difference]: Without dead ends: 1073 [2023-11-12 02:34:26,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:34:26,951 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 334 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:26,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1595 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-12 02:34:26,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2023-11-12 02:34:27,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1043. [2023-11-12 02:34:27,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 760 states have (on average 1.306578947368421) internal successors, (993), 783 states have internal predecessors, (993), 190 states have call successors, (190), 83 states have call predecessors, (190), 83 states have return successors, (188), 188 states have call predecessors, (188), 187 states have call successors, (188) [2023-11-12 02:34:27,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1371 transitions. [2023-11-12 02:34:27,024 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1371 transitions. Word has length 112 [2023-11-12 02:34:27,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:27,024 INFO L495 AbstractCegarLoop]: Abstraction has 1043 states and 1371 transitions. [2023-11-12 02:34:27,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 02:34:27,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1371 transitions. [2023-11-12 02:34:27,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-12 02:34:27,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:27,028 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 4, 4, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:27,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:34:27,028 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:27,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:27,029 INFO L85 PathProgramCache]: Analyzing trace with hash -191720954, now seen corresponding path program 1 times [2023-11-12 02:34:27,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:27,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939818505] [2023-11-12 02:34:27,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:27,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-12 02:34:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:34:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:34:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:34:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-12 02:34:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-12 02:34:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-12 02:34:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-12 02:34:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-12 02:34:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-12 02:34:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:34:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,688 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2023-11-12 02:34:27,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:27,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939818505] [2023-11-12 02:34:27,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939818505] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:27,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:27,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:34:27,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897181182] [2023-11-12 02:34:27,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:27,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:34:27,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:27,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:34:27,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:34:27,692 INFO L87 Difference]: Start difference. First operand 1043 states and 1371 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:34:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:30,786 INFO L93 Difference]: Finished difference Result 1951 states and 2584 transitions. [2023-11-12 02:34:30,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:34:30,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 147 [2023-11-12 02:34:30,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:30,796 INFO L225 Difference]: With dead ends: 1951 [2023-11-12 02:34:30,796 INFO L226 Difference]: Without dead ends: 1512 [2023-11-12 02:34:30,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:34:30,799 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1152 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:30,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 916 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-12 02:34:30,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2023-11-12 02:34:30,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1468. [2023-11-12 02:34:30,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1069 states have (on average 1.3161833489242283) internal successors, (1407), 1098 states have internal predecessors, (1407), 273 states have call successors, (273), 119 states have call predecessors, (273), 118 states have return successors, (268), 268 states have call predecessors, (268), 267 states have call successors, (268) [2023-11-12 02:34:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 1948 transitions. [2023-11-12 02:34:30,913 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 1948 transitions. Word has length 147 [2023-11-12 02:34:30,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:30,914 INFO L495 AbstractCegarLoop]: Abstraction has 1468 states and 1948 transitions. [2023-11-12 02:34:30,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:34:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 1948 transitions. [2023-11-12 02:34:30,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-12 02:34:30,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:30,917 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1] [2023-11-12 02:34:30,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:34:30,918 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:30,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:30,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2122655750, now seen corresponding path program 1 times [2023-11-12 02:34:30,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:30,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913377058] [2023-11-12 02:34:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:30,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-12 02:34:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:34:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:34:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:34:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-12 02:34:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-12 02:34:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-12 02:34:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-12 02:34:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-12 02:34:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-12 02:34:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2023-11-12 02:34:31,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:31,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913377058] [2023-11-12 02:34:31,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913377058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:31,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:31,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:34:31,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617125617] [2023-11-12 02:34:31,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:31,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:34:31,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:31,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:34:31,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:34:31,523 INFO L87 Difference]: Start difference. First operand 1468 states and 1948 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 02:34:33,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:33,167 INFO L93 Difference]: Finished difference Result 1526 states and 1994 transitions. [2023-11-12 02:34:33,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:34:33,168 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 148 [2023-11-12 02:34:33,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:33,173 INFO L225 Difference]: With dead ends: 1526 [2023-11-12 02:34:33,173 INFO L226 Difference]: Without dead ends: 620 [2023-11-12 02:34:33,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:34:33,177 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 216 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:33,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 2025 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-12 02:34:33,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2023-11-12 02:34:33,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 608. [2023-11-12 02:34:33,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 446 states have (on average 1.2600896860986548) internal successors, (562), 461 states have internal predecessors, (562), 104 states have call successors, (104), 50 states have call predecessors, (104), 50 states have return successors, (102), 102 states have call predecessors, (102), 101 states have call successors, (102) [2023-11-12 02:34:33,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 768 transitions. [2023-11-12 02:34:33,234 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 768 transitions. Word has length 148 [2023-11-12 02:34:33,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:33,235 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 768 transitions. [2023-11-12 02:34:33,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 02:34:33,235 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 768 transitions. [2023-11-12 02:34:33,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-12 02:34:33,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:33,239 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 6, 6, 3, 3, 2, 2, 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, 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, 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] [2023-11-12 02:34:33,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 02:34:33,240 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:33,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:33,240 INFO L85 PathProgramCache]: Analyzing trace with hash 347555698, now seen corresponding path program 1 times [2023-11-12 02:34:33,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:33,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175038229] [2023-11-12 02:34:33,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:33,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-12 02:34:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:34:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:34:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:34:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-12 02:34:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-12 02:34:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-12 02:34:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-12 02:34:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-12 02:34:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-12 02:34:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:34:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-12 02:34:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-12 02:34:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-12 02:34:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:33,922 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2023-11-12 02:34:33,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:33,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175038229] [2023-11-12 02:34:33,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175038229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:33,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:33,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-12 02:34:33,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170733758] [2023-11-12 02:34:33,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:33,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:34:33,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:33,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:34:33,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:34:33,925 INFO L87 Difference]: Start difference. First operand 608 states and 768 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 02:34:36,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:36,732 INFO L93 Difference]: Finished difference Result 747 states and 936 transitions. [2023-11-12 02:34:36,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:34:36,733 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2023-11-12 02:34:36,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:34:36,737 INFO L225 Difference]: With dead ends: 747 [2023-11-12 02:34:36,737 INFO L226 Difference]: Without dead ends: 584 [2023-11-12 02:34:36,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:34:36,738 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 427 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 2072 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 2293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:34:36,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1506 Invalid, 2293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2072 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-12 02:34:36,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-11-12 02:34:36,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 572. [2023-11-12 02:34:36,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 421 states have (on average 1.2731591448931117) internal successors, (536), 436 states have internal predecessors, (536), 98 states have call successors, (98), 46 states have call predecessors, (98), 45 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2023-11-12 02:34:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 729 transitions. [2023-11-12 02:34:36,786 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 729 transitions. Word has length 175 [2023-11-12 02:34:36,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:34:36,786 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 729 transitions. [2023-11-12 02:34:36,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 02:34:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 729 transitions. [2023-11-12 02:34:36,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-12 02:34:36,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:34:36,790 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 6, 6, 3, 3, 2, 2, 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, 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, 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] [2023-11-12 02:34:36,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-12 02:34:36,790 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:34:36,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:36,790 INFO L85 PathProgramCache]: Analyzing trace with hash 956829551, now seen corresponding path program 1 times [2023-11-12 02:34:36,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:36,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399302969] [2023-11-12 02:34:36,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:36,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:34:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-12 02:34:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:34:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:34:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:34:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-12 02:34:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-12 02:34:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-12 02:34:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-12 02:34:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-12 02:34:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-12 02:34:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:34:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:34:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-12 02:34:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-12 02:34:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-12 02:34:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2023-11-12 02:34:37,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:37,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399302969] [2023-11-12 02:34:37,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399302969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:37,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:37,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:34:37,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862813339] [2023-11-12 02:34:37,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:37,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:34:37,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:37,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:34:37,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:34:37,965 INFO L87 Difference]: Start difference. First operand 572 states and 729 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)