/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound1.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-34549b5
[2022-04-08 01:08:16,474 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-04-08 01:08:16,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-08 01:08:16,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-08 01:08:16,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-08 01:08:16,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-08 01:08:16,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-08 01:08:16,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-08 01:08:16,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-08 01:08:16,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-08 01:08:16,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-04-08 01:08:16,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-08 01:08:16,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-08 01:08:16,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-08 01:08:16,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-08 01:08:16,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-08 01:08:16,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-08 01:08:16,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-08 01:08:16,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-08 01:08:16,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-08 01:08:16,564 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-08 01:08:16,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-08 01:08:16,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-08 01:08:16,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-04-08 01:08:16,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-08 01:08:16,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-08 01:08:16,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-08 01:08:16,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-08 01:08:16,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-08 01:08:16,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-08 01:08:16,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-08 01:08:16,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-08 01:08:16,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-08 01:08:16,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-08 01:08:16,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-08 01:08:16,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-08 01:08:16,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-08 01:08:16,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-08 01:08:16,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-08 01:08:16,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-08 01:08:16,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-08 01:08:16,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-04-08 01:08:16,580 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf
[2022-04-08 01:08:16,603 INFO L113 SettingsManager]: Loading preferences was successful
[2022-04-08 01:08:16,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-08 01:08:16,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-04-08 01:08:16,604 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-04-08 01:08:16,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-04-08 01:08:16,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-04-08 01:08:16,605 INFO L138 SettingsManager]: * Use SBE=true
[2022-04-08 01:08:16,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-08 01:08:16,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-04-08 01:08:16,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-04-08 01:08:16,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-04-08 01:08:16,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-08 01:08:16,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-04-08 01:08:16,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-04-08 01:08:16,606 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-04-08 01:08:16,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-04-08 01:08:16,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-08 01:08:16,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-04-08 01:08:16,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-04-08 01:08:16,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-08 01:08:16,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-08 01:08:16,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-04-08 01:08:16,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-04-08 01:08:16,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-04-08 01:08:16,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-04-08 01:08:16,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-08 01:08:16,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2022-04-08 01:08:16,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-04-08 01:08:16,609 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-04-08 01:08:16,609 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-04-08 01:08:16,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-08 01:08:16,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-08 01:08:16,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-08 01:08:16,829 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-04-08 01:08:16,830 INFO L275 PluginConnector]: CDTParser initialized
[2022-04-08 01:08:16,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound1.c
[2022-04-08 01:08:16,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/701091eb3/aa0a438de8864b4f9603dab9c016257f/FLAG02c0dcd46
[2022-04-08 01:08:17,224 INFO L306 CDTParser]: Found 1 translation units.
[2022-04-08 01:08:17,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound1.c
[2022-04-08 01:08:17,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/701091eb3/aa0a438de8864b4f9603dab9c016257f/FLAG02c0dcd46
[2022-04-08 01:08:17,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/701091eb3/aa0a438de8864b4f9603dab9c016257f
[2022-04-08 01:08:17,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-08 01:08:17,655 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-04-08 01:08:17,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-08 01:08:17,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-08 01:08:17,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-08 01:08:17,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 01:08:17" (1/1) ...
[2022-04-08 01:08:17,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55139f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 01:08:17, skipping insertion in model container
[2022-04-08 01:08:17,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 01:08:17" (1/1) ...
[2022-04-08 01:08:17,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-04-08 01:08:17,680 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-04-08 01:08:17,826 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound1.c[525,538]
[2022-04-08 01:08:17,852 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-04-08 01:08:17,858 INFO L203 MainTranslator]: Completed pre-run
[2022-04-08 01:08:17,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound1.c[525,538]
[2022-04-08 01:08:17,885 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-04-08 01:08:17,895 INFO L208 MainTranslator]: Completed translation
[2022-04-08 01:08:17,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 01:08:17 WrapperNode
[2022-04-08 01:08:17,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-08 01:08:17,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-08 01:08:17,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-08 01:08:17,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-04-08 01:08:17,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 01:08:17" (1/1) ...
[2022-04-08 01:08:17,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 01:08:17" (1/1) ...
[2022-04-08 01:08:17,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 01:08:17" (1/1) ...
[2022-04-08 01:08:17,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 01:08:17" (1/1) ...
[2022-04-08 01:08:17,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 01:08:17" (1/1) ...
[2022-04-08 01:08:17,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 01:08:17" (1/1) ...
[2022-04-08 01:08:17,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 01:08:17" (1/1) ...
[2022-04-08 01:08:17,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-08 01:08:17,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-08 01:08:17,935 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-04-08 01:08:17,935 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-04-08 01:08:17,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 01:08:17" (1/1) ...
[2022-04-08 01:08:17,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-08 01:08:17,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-08 01:08:17,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-04-08 01:08:17,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-04-08 01:08:18,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-04-08 01:08:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-08 01:08:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-04-08 01:08:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-04-08 01:08:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-04-08 01:08:18,020 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-04-08 01:08:18,020 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-04-08 01:08:18,020 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-04-08 01:08:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-04-08 01:08:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-08 01:08:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2022-04-08 01:08:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-04-08 01:08:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-04-08 01:08:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-04-08 01:08:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-04-08 01:08:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-08 01:08:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-08 01:08:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-04-08 01:08:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-04-08 01:08:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-08 01:08:18,073 INFO L234 CfgBuilder]: Building ICFG
[2022-04-08 01:08:18,075 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-08 01:08:18,236 INFO L275 CfgBuilder]: Performing block encoding
[2022-04-08 01:08:18,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-08 01:08:18,241 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2022-04-08 01:08:18,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 01:08:18 BoogieIcfgContainer
[2022-04-08 01:08:18,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-08 01:08:18,243 INFO L113 PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-04-08 01:08:18,243 INFO L271 PluginConnector]: Initializing IcfgTransformer...
[2022-04-08 01:08:18,244 INFO L275 PluginConnector]: IcfgTransformer initialized
[2022-04-08 01:08:18,246 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 01:08:18" (1/1) ...
[2022-04-08 01:08:18,248 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR
[2022-04-08 01:08:18,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 08.04 01:08:18 BasicIcfg
[2022-04-08 01:08:18,265 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-04-08 01:08:18,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-08 01:08:18,267 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-04-08 01:08:18,269 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-04-08 01:08:18,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.04 01:08:17" (1/4) ...
[2022-04-08 01:08:18,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335e2742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 01:08:18, skipping insertion in model container
[2022-04-08 01:08:18,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 01:08:17" (2/4) ...
[2022-04-08 01:08:18,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335e2742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 01:08:18, skipping insertion in model container
[2022-04-08 01:08:18,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 01:08:18" (3/4) ...
[2022-04-08 01:08:18,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335e2742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.04 01:08:18, skipping insertion in model container
[2022-04-08 01:08:18,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 08.04 01:08:18" (4/4) ...
[2022-04-08 01:08:18,276 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_unwindbound1.cqvasr
[2022-04-08 01:08:18,287 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-04-08 01:08:18,287 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-04-08 01:08:18,334 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-08 01:08:18,341 INFO L340 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP
[2022-04-08 01:08:18,341 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-04-08 01:08:18,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-04-08 01:08:18,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-04-08 01:08:18,363 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-08 01:08:18,364 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-08 01:08:18,364 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-08 01:08:18,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-08 01:08:18,370 INFO L85 PathProgramCache]: Analyzing trace with hash -630084848, now seen corresponding path program 1 times
[2022-04-08 01:08:18,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-08 01:08:18,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293836812]
[2022-04-08 01:08:18,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-08 01:08:18,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-08 01:08:18,475 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-08 01:08:18,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548809247]
[2022-04-08 01:08:18,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-08 01:08:18,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-08 01:08:18,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-08 01:08:18,480 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-04-08 01:08:18,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-04-08 01:08:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-08 01:08:18,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-04-08 01:08:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-08 01:08:18,556 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-08 01:08:18,602 INFO L272 TraceCheckUtils]: 0: Hoare triple {25#true} [57] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID
[2022-04-08 01:08:18,602 INFO L290 TraceCheckUtils]: 1: Hoare triple {25#true} [59] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {25#true} is VALID
[2022-04-08 01:08:18,602 INFO L290 TraceCheckUtils]: 2: Hoare triple {25#true} [62] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID
[2022-04-08 01:08:18,603 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {25#true} {25#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID
[2022-04-08 01:08:18,603 INFO L272 TraceCheckUtils]: 4: Hoare triple {25#true} [58] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID
[2022-04-08 01:08:18,603 INFO L290 TraceCheckUtils]: 5: Hoare triple {25#true} [61] mainENTRY-->L34-3: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet5_2|) (<= |v_main_#t~nondet6_2| 2147483647) (= (* v_main_~a~0_2 v_main_~z~0_2) v_main_~az~0_2) (= v_main_~c~0_2 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet6_2| 2147483648)) (= v_main_~a~0_2 v_main_~x~0_2) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_2 |v_main_#t~nondet6_2|) (= v_main_~y~0_2 1) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|, main_#t~nondet6=|v_main_#t~nondet6_2|} OutVars{main_~az~0=v_main_~az~0_2, main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_2, main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~az~0, main_#t~nondet5, main_#t~nondet4, main_#t~nondet6, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0, main_~a~0] {25#true} is VALID
[2022-04-08 01:08:18,604 INFO L290 TraceCheckUtils]: 6: Hoare triple {25#true} [63] L34-3-->L34-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {26#false} is VALID
[2022-04-08 01:08:18,604 INFO L272 TraceCheckUtils]: 7: Hoare triple {26#false} [65] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~x~0_10 v_main_~z~0_8) (* (- 1) v_main_~x~0_10) v_main_~a~0_8 (* (- 1) (* v_main_~y~0_9 v_main_~az~0_7))) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~az~0=v_main_~az~0_7, main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {26#false} is VALID
[2022-04-08 01:08:18,604 INFO L290 TraceCheckUtils]: 8: Hoare triple {26#false} [69] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {26#false} is VALID
[2022-04-08 01:08:18,605 INFO L290 TraceCheckUtils]: 9: Hoare triple {26#false} [72] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {26#false} is VALID
[2022-04-08 01:08:18,605 INFO L290 TraceCheckUtils]: 10: Hoare triple {26#false} [76] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {26#false} is VALID
[2022-04-08 01:08:18,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-08 01:08:18,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-04-08 01:08:18,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-08 01:08:18,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293836812]
[2022-04-08 01:08:18,606 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-08 01:08:18,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548809247]
[2022-04-08 01:08:18,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548809247] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-08 01:08:18,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-08 01:08:18,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-08 01:08:18,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320847283]
[2022-04-08 01:08:18,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-08 01:08:18,613 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11
[2022-04-08 01:08:18,614 INFO L84 Accepts]: Finished accepts. word is accepted.
[2022-04-08 01:08:18,616 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:18,633 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 01:08:18,633 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-04-08 01:08:18,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-08 01:08:18,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-04-08 01:08:18,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-08 01:08:18,654 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:18,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 01:08:18,685 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions.
[2022-04-08 01:08:18,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-04-08 01:08:18,685 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11
[2022-04-08 01:08:18,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-08 01:08:18,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:18,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 48 transitions.
[2022-04-08 01:08:18,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:18,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 48 transitions.
[2022-04-08 01:08:18,693 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 2 states and 48 transitions.
[2022-04-08 01:08:18,732 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 01:08:18,737 INFO L225 Difference]: With dead ends: 38
[2022-04-08 01:08:18,738 INFO L226 Difference]: Without dead ends: 17
[2022-04-08 01:08:18,740 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-08 01:08:18,742 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-08 01:08:18,742 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-08 01:08:18,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2022-04-08 01:08:18,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2022-04-08 01:08:18,764 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-08 01:08:18,764 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-08 01:08:18,765 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-08 01:08:18,765 INFO L87 Difference]: Start difference. First operand 17 states. Second operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-08 01:08:18,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 01:08:18,767 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions.
[2022-04-08 01:08:18,767 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2022-04-08 01:08:18,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-08 01:08:18,767 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2022-04-08 01:08:18,768 INFO L74 IsIncluded]: Start isIncluded. First operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 17 states.
[2022-04-08 01:08:18,768 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 17 states.
[2022-04-08 01:08:18,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 01:08:18,769 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions.
[2022-04-08 01:08:18,769 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2022-04-08 01:08:18,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-08 01:08:18,770 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2022-04-08 01:08:18,770 INFO L88 GeneralOperation]: Finished isEquivalent.
[2022-04-08 01:08:18,770 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-08 01:08:18,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-08 01:08:18,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions.
[2022-04-08 01:08:18,774 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11
[2022-04-08 01:08:18,774 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-08 01:08:18,775 INFO L478 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions.
[2022-04-08 01:08:18,775 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:18,775 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2022-04-08 01:08:18,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-04-08 01:08:18,775 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-08 01:08:18,776 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-08 01:08:18,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-04-08 01:08:18,991 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2022-04-08 01:08:18,992 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-08 01:08:18,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-08 01:08:18,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1971636769, now seen corresponding path program 1 times
[2022-04-08 01:08:18,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-08 01:08:18,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125077710]
[2022-04-08 01:08:18,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-08 01:08:18,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-08 01:08:19,017 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-08 01:08:19,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1494098010]
[2022-04-08 01:08:19,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-08 01:08:19,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-08 01:08:19,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-08 01:08:19,019 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-04-08 01:08:19,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-04-08 01:08:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-08 01:08:19,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-04-08 01:08:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-08 01:08:19,079 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-08 01:08:19,213 INFO L272 TraceCheckUtils]: 0: Hoare triple {168#true} [57] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {168#true} is VALID
[2022-04-08 01:08:19,214 INFO L290 TraceCheckUtils]: 1: Hoare triple {168#true} [59] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {176#(<= ~counter~0 0)} is VALID
[2022-04-08 01:08:19,214 INFO L290 TraceCheckUtils]: 2: Hoare triple {176#(<= ~counter~0 0)} [62] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {176#(<= ~counter~0 0)} is VALID
[2022-04-08 01:08:19,215 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {176#(<= ~counter~0 0)} {168#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {176#(<= ~counter~0 0)} is VALID
[2022-04-08 01:08:19,215 INFO L272 TraceCheckUtils]: 4: Hoare triple {176#(<= ~counter~0 0)} [58] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {176#(<= ~counter~0 0)} is VALID
[2022-04-08 01:08:19,216 INFO L290 TraceCheckUtils]: 5: Hoare triple {176#(<= ~counter~0 0)} [61] mainENTRY-->L34-3: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet5_2|) (<= |v_main_#t~nondet6_2| 2147483647) (= (* v_main_~a~0_2 v_main_~z~0_2) v_main_~az~0_2) (= v_main_~c~0_2 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet6_2| 2147483648)) (= v_main_~a~0_2 v_main_~x~0_2) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_2 |v_main_#t~nondet6_2|) (= v_main_~y~0_2 1) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|, main_#t~nondet6=|v_main_#t~nondet6_2|} OutVars{main_~az~0=v_main_~az~0_2, main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_2, main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~az~0, main_#t~nondet5, main_#t~nondet4, main_#t~nondet6, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0, main_~a~0] {176#(<= ~counter~0 0)} is VALID
[2022-04-08 01:08:19,216 INFO L290 TraceCheckUtils]: 6: Hoare triple {176#(<= ~counter~0 0)} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {192#(<= |main_#t~post7| 0)} is VALID
[2022-04-08 01:08:19,217 INFO L290 TraceCheckUtils]: 7: Hoare triple {192#(<= |main_#t~post7| 0)} [66] L34-1-->L34-4: Formula: (not (< |v_main_#t~post7_2| 1)) InVars {main_#t~post7=|v_main_#t~post7_2|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {169#false} is VALID
[2022-04-08 01:08:19,217 INFO L272 TraceCheckUtils]: 8: Hoare triple {169#false} [65] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~x~0_10 v_main_~z~0_8) (* (- 1) v_main_~x~0_10) v_main_~a~0_8 (* (- 1) (* v_main_~y~0_9 v_main_~az~0_7))) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~az~0=v_main_~az~0_7, main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {169#false} is VALID
[2022-04-08 01:08:19,217 INFO L290 TraceCheckUtils]: 9: Hoare triple {169#false} [69] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {169#false} is VALID
[2022-04-08 01:08:19,217 INFO L290 TraceCheckUtils]: 10: Hoare triple {169#false} [72] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {169#false} is VALID
[2022-04-08 01:08:19,218 INFO L290 TraceCheckUtils]: 11: Hoare triple {169#false} [76] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {169#false} is VALID
[2022-04-08 01:08:19,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-08 01:08:19,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-04-08 01:08:19,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-08 01:08:19,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125077710]
[2022-04-08 01:08:19,218 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-08 01:08:19,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494098010]
[2022-04-08 01:08:19,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494098010] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-08 01:08:19,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-08 01:08:19,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-08 01:08:19,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576142786]
[2022-04-08 01:08:19,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-08 01:08:19,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2022-04-08 01:08:19,220 INFO L84 Accepts]: Finished accepts. word is accepted.
[2022-04-08 01:08:19,220 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:19,230 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 01:08:19,230 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-04-08 01:08:19,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-08 01:08:19,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-04-08 01:08:19,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-04-08 01:08:19,231 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:19,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 01:08:19,298 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions.
[2022-04-08 01:08:19,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-04-08 01:08:19,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2022-04-08 01:08:19,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-08 01:08:19,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:19,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions.
[2022-04-08 01:08:19,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:19,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions.
[2022-04-08 01:08:19,303 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 28 transitions.
[2022-04-08 01:08:19,325 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 01:08:19,326 INFO L225 Difference]: With dead ends: 26
[2022-04-08 01:08:19,326 INFO L226 Difference]: Without dead ends: 19
[2022-04-08 01:08:19,326 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-04-08 01:08:19,327 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-08 01:08:19,327 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-08 01:08:19,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2022-04-08 01:08:19,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2022-04-08 01:08:19,331 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-08 01:08:19,332 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-08 01:08:19,367 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-08 01:08:19,379 INFO L87 Difference]: Start difference. First operand 19 states. Second operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-08 01:08:19,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 01:08:19,381 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions.
[2022-04-08 01:08:19,381 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2022-04-08 01:08:19,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-08 01:08:19,381 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2022-04-08 01:08:19,381 INFO L74 IsIncluded]: Start isIncluded. First operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 19 states.
[2022-04-08 01:08:19,381 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 19 states.
[2022-04-08 01:08:19,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 01:08:19,385 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions.
[2022-04-08 01:08:19,385 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2022-04-08 01:08:19,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-08 01:08:19,385 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2022-04-08 01:08:19,386 INFO L88 GeneralOperation]: Finished isEquivalent.
[2022-04-08 01:08:19,386 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-08 01:08:19,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-08 01:08:19,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions.
[2022-04-08 01:08:19,387 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12
[2022-04-08 01:08:19,387 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-08 01:08:19,387 INFO L478 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions.
[2022-04-08 01:08:19,387 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:19,387 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2022-04-08 01:08:19,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-04-08 01:08:19,388 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-08 01:08:19,388 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-08 01:08:19,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-04-08 01:08:19,605 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2022-04-08 01:08:19,606 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-08 01:08:19,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-08 01:08:19,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1972709245, now seen corresponding path program 1 times
[2022-04-08 01:08:19,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-08 01:08:19,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104635569]
[2022-04-08 01:08:19,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-08 01:08:19,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-08 01:08:19,622 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-08 01:08:19,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [491491048]
[2022-04-08 01:08:19,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-08 01:08:19,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-08 01:08:19,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-08 01:08:19,623 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-04-08 01:08:19,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-04-08 01:08:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-08 01:08:19,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core
[2022-04-08 01:08:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-08 01:08:19,681 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-08 01:08:19,802 INFO L272 TraceCheckUtils]: 0: Hoare triple {310#true} [57] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {310#true} is VALID
[2022-04-08 01:08:19,803 INFO L290 TraceCheckUtils]: 1: Hoare triple {310#true} [59] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {310#true} is VALID
[2022-04-08 01:08:19,803 INFO L290 TraceCheckUtils]: 2: Hoare triple {310#true} [62] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {310#true} is VALID
[2022-04-08 01:08:19,803 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {310#true} {310#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {310#true} is VALID
[2022-04-08 01:08:19,803 INFO L272 TraceCheckUtils]: 4: Hoare triple {310#true} [58] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {310#true} is VALID
[2022-04-08 01:08:19,804 INFO L290 TraceCheckUtils]: 5: Hoare triple {310#true} [61] mainENTRY-->L34-3: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet5_2|) (<= |v_main_#t~nondet6_2| 2147483647) (= (* v_main_~a~0_2 v_main_~z~0_2) v_main_~az~0_2) (= v_main_~c~0_2 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet6_2| 2147483648)) (= v_main_~a~0_2 v_main_~x~0_2) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_2 |v_main_#t~nondet6_2|) (= v_main_~y~0_2 1) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|, main_#t~nondet6=|v_main_#t~nondet6_2|} OutVars{main_~az~0=v_main_~az~0_2, main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_2, main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~az~0, main_#t~nondet5, main_#t~nondet4, main_#t~nondet6, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0, main_~a~0] {330#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} is VALID
[2022-04-08 01:08:19,805 INFO L290 TraceCheckUtils]: 6: Hoare triple {330#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {330#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} is VALID
[2022-04-08 01:08:19,805 INFO L290 TraceCheckUtils]: 7: Hoare triple {330#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} [67] L34-1-->L35: Formula: (< |v_main_#t~post7_4| 1) InVars {main_#t~post7=|v_main_#t~post7_4|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {330#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} is VALID
[2022-04-08 01:08:19,806 INFO L272 TraceCheckUtils]: 8: Hoare triple {330#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} [70] L35-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {340#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID
[2022-04-08 01:08:19,807 INFO L290 TraceCheckUtils]: 9: Hoare triple {340#(<= 1 |__VERIFIER_assert_#in~cond|)} [69] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {344#(<= 1 __VERIFIER_assert_~cond)} is VALID
[2022-04-08 01:08:19,807 INFO L290 TraceCheckUtils]: 10: Hoare triple {344#(<= 1 __VERIFIER_assert_~cond)} [72] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {311#false} is VALID
[2022-04-08 01:08:19,807 INFO L290 TraceCheckUtils]: 11: Hoare triple {311#false} [76] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {311#false} is VALID
[2022-04-08 01:08:19,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-08 01:08:19,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-04-08 01:08:19,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-08 01:08:19,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104635569]
[2022-04-08 01:08:19,808 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-08 01:08:19,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491491048]
[2022-04-08 01:08:19,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491491048] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-08 01:08:19,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-08 01:08:19,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-04-08 01:08:19,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757844822]
[2022-04-08 01:08:19,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-08 01:08:19,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2022-04-08 01:08:19,809 INFO L84 Accepts]: Finished accepts. word is accepted.
[2022-04-08 01:08:19,809 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:19,822 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 01:08:19,823 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-04-08 01:08:19,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-08 01:08:19,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-04-08 01:08:19,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-04-08 01:08:19,824 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:19,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 01:08:19,926 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions.
[2022-04-08 01:08:19,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-04-08 01:08:19,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2022-04-08 01:08:19,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-08 01:08:19,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:19,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions.
[2022-04-08 01:08:19,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:19,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions.
[2022-04-08 01:08:19,929 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 31 transitions.
[2022-04-08 01:08:19,956 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 01:08:19,957 INFO L225 Difference]: With dead ends: 28
[2022-04-08 01:08:19,957 INFO L226 Difference]: Without dead ends: 25
[2022-04-08 01:08:19,957 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-04-08 01:08:19,958 INFO L913 BasicCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-08 01:08:19,958 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 57 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-08 01:08:19,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2022-04-08 01:08:19,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2022-04-08 01:08:19,963 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-08 01:08:19,964 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-08 01:08:19,964 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-08 01:08:19,964 INFO L87 Difference]: Start difference. First operand 25 states. Second operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-08 01:08:19,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 01:08:19,965 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions.
[2022-04-08 01:08:19,966 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2022-04-08 01:08:19,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-08 01:08:19,966 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2022-04-08 01:08:19,966 INFO L74 IsIncluded]: Start isIncluded. First operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 25 states.
[2022-04-08 01:08:19,966 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 25 states.
[2022-04-08 01:08:19,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 01:08:19,968 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions.
[2022-04-08 01:08:19,968 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2022-04-08 01:08:19,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-08 01:08:19,968 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2022-04-08 01:08:19,968 INFO L88 GeneralOperation]: Finished isEquivalent.
[2022-04-08 01:08:19,968 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-08 01:08:19,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-08 01:08:19,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions.
[2022-04-08 01:08:19,970 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 12
[2022-04-08 01:08:19,970 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-08 01:08:19,970 INFO L478 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions.
[2022-04-08 01:08:19,970 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 01:08:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2022-04-08 01:08:19,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2022-04-08 01:08:19,971 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-08 01:08:19,971 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-08 01:08:19,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-04-08 01:08:20,181 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-08 01:08:20,181 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-08 01:08:20,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-08 01:08:20,182 INFO L85 PathProgramCache]: Analyzing trace with hash -832305310, now seen corresponding path program 1 times
[2022-04-08 01:08:20,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-08 01:08:20,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658052507]
[2022-04-08 01:08:20,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-08 01:08:20,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-08 01:08:20,192 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-08 01:08:20,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [816700817]
[2022-04-08 01:08:20,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-08 01:08:20,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-08 01:08:20,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-08 01:08:20,195 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-04-08 01:08:20,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-04-08 01:08:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-08 01:08:20,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 20 conjunts are in the unsatisfiable core
[2022-04-08 01:08:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-08 01:08:20,242 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-08 01:08:20,491 INFO L272 TraceCheckUtils]: 0: Hoare triple {478#true} [57] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {478#true} is VALID
[2022-04-08 01:08:20,491 INFO L290 TraceCheckUtils]: 1: Hoare triple {478#true} [59] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {478#true} is VALID
[2022-04-08 01:08:20,492 INFO L290 TraceCheckUtils]: 2: Hoare triple {478#true} [62] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {478#true} is VALID
[2022-04-08 01:08:20,492 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {478#true} {478#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {478#true} is VALID
[2022-04-08 01:08:20,493 INFO L272 TraceCheckUtils]: 4: Hoare triple {478#true} [58] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {478#true} is VALID
[2022-04-08 01:08:20,493 INFO L290 TraceCheckUtils]: 5: Hoare triple {478#true} [61] mainENTRY-->L34-3: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet5_2|) (<= |v_main_#t~nondet6_2| 2147483647) (= (* v_main_~a~0_2 v_main_~z~0_2) v_main_~az~0_2) (= v_main_~c~0_2 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet6_2| 2147483648)) (= v_main_~a~0_2 v_main_~x~0_2) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_2 |v_main_#t~nondet6_2|) (= v_main_~y~0_2 1) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|, main_#t~nondet6=|v_main_#t~nondet6_2|} OutVars{main_~az~0=v_main_~az~0_2, main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_2, main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~az~0, main_#t~nondet5, main_#t~nondet4, main_#t~nondet6, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0, main_~a~0] {498#(and (= main_~y~0 1) (= main_~a~0 main_~x~0))} is VALID
[2022-04-08 01:08:20,494 INFO L290 TraceCheckUtils]: 6: Hoare triple {498#(and (= main_~y~0 1) (= main_~a~0 main_~x~0))} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {498#(and (= main_~y~0 1) (= main_~a~0 main_~x~0))} is VALID
[2022-04-08 01:08:20,494 INFO L290 TraceCheckUtils]: 7: Hoare triple {498#(and (= main_~y~0 1) (= main_~a~0 main_~x~0))} [67] L34-1-->L35: Formula: (< |v_main_#t~post7_4| 1) InVars {main_#t~post7=|v_main_#t~post7_4|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {498#(and (= main_~y~0 1) (= main_~a~0 main_~x~0))} is VALID
[2022-04-08 01:08:20,495 INFO L272 TraceCheckUtils]: 8: Hoare triple {498#(and (= main_~y~0 1) (= main_~a~0 main_~x~0))} [70] L35-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {478#true} is VALID
[2022-04-08 01:08:20,495 INFO L290 TraceCheckUtils]: 9: Hoare triple {478#true} [69] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {511#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID
[2022-04-08 01:08:20,496 INFO L290 TraceCheckUtils]: 10: Hoare triple {511#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} [73] L15-->L15-2: Formula: (not (= v___VERIFIER_assert_~cond_3 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {515#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID
[2022-04-08 01:08:20,497 INFO L290 TraceCheckUtils]: 11: Hoare triple {515#(not (= |__VERIFIER_assert_#in~cond| 0))} [78] L15-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {515#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID
[2022-04-08 01:08:20,498 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {515#(not (= |__VERIFIER_assert_#in~cond| 0))} {498#(and (= main_~y~0 1) (= main_~a~0 main_~x~0))} [81] __VERIFIER_assertEXIT-->L35-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {522#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0)))} is VALID
[2022-04-08 01:08:20,502 INFO L290 TraceCheckUtils]: 13: Hoare triple {522#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0)))} [75] L35-1-->L34-3: Formula: (and (= (+ v_main_~a~0_5 (* v_main_~x~0_6 v_main_~z~0_5)) v_main_~x~0_5) (= v_main_~y~0_5 (* v_main_~y~0_6 v_main_~z~0_5)) (< v_main_~c~0_6 v_main_~k~0_5) (= (+ v_main_~c~0_6 1) v_main_~c~0_5)) InVars {main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_5, main_~k~0=v_main_~k~0_5, main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_5, main_~k~0=v_main_~k~0_5, main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_5, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {526#(and (= (+ (* main_~a~0 main_~z~0) main_~a~0) (+ main_~a~0 main_~az~0)) (= main_~z~0 main_~y~0) (= main_~x~0 (+ (* main_~a~0 main_~z~0) main_~a~0)))} is VALID
[2022-04-08 01:08:20,502 INFO L290 TraceCheckUtils]: 14: Hoare triple {526#(and (= (+ (* main_~a~0 main_~z~0) main_~a~0) (+ main_~a~0 main_~az~0)) (= main_~z~0 main_~y~0) (= main_~x~0 (+ (* main_~a~0 main_~z~0) main_~a~0)))} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {526#(and (= (+ (* main_~a~0 main_~z~0) main_~a~0) (+ main_~a~0 main_~az~0)) (= main_~z~0 main_~y~0) (= main_~x~0 (+ (* main_~a~0 main_~z~0) main_~a~0)))} is VALID
[2022-04-08 01:08:20,503 INFO L290 TraceCheckUtils]: 15: Hoare triple {526#(and (= (+ (* main_~a~0 main_~z~0) main_~a~0) (+ main_~a~0 main_~az~0)) (= main_~z~0 main_~y~0) (= main_~x~0 (+ (* main_~a~0 main_~z~0) main_~a~0)))} [66] L34-1-->L34-4: Formula: (not (< |v_main_#t~post7_2| 1)) InVars {main_#t~post7=|v_main_#t~post7_2|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {526#(and (= (+ (* main_~a~0 main_~z~0) main_~a~0) (+ main_~a~0 main_~az~0)) (= main_~z~0 main_~y~0) (= main_~x~0 (+ (* main_~a~0 main_~z~0) main_~a~0)))} is VALID
[2022-04-08 01:08:20,505 INFO L272 TraceCheckUtils]: 16: Hoare triple {526#(and (= (+ (* main_~a~0 main_~z~0) main_~a~0) (+ main_~a~0 main_~az~0)) (= main_~z~0 main_~y~0) (= main_~x~0 (+ (* main_~a~0 main_~z~0) main_~a~0)))} [65] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~x~0_10 v_main_~z~0_8) (* (- 1) v_main_~x~0_10) v_main_~a~0_8 (* (- 1) (* v_main_~y~0_9 v_main_~az~0_7))) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~az~0=v_main_~az~0_7, main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {536#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID
[2022-04-08 01:08:20,507 INFO L290 TraceCheckUtils]: 17: Hoare triple {536#(<= 1 |__VERIFIER_assert_#in~cond|)} [69] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {540#(<= 1 __VERIFIER_assert_~cond)} is VALID
[2022-04-08 01:08:20,507 INFO L290 TraceCheckUtils]: 18: Hoare triple {540#(<= 1 __VERIFIER_assert_~cond)} [72] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {479#false} is VALID
[2022-04-08 01:08:20,508 INFO L290 TraceCheckUtils]: 19: Hoare triple {479#false} [76] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {479#false} is VALID
[2022-04-08 01:08:20,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-08 01:08:20,508 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-04-08 01:08:42,435 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful
[2022-04-08 01:09:26,453 INFO L290 TraceCheckUtils]: 19: Hoare triple {479#false} [76] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {479#false} is VALID
[2022-04-08 01:09:26,454 INFO L290 TraceCheckUtils]: 18: Hoare triple {540#(<= 1 __VERIFIER_assert_~cond)} [72] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {479#false} is VALID
[2022-04-08 01:09:26,455 INFO L290 TraceCheckUtils]: 17: Hoare triple {536#(<= 1 |__VERIFIER_assert_#in~cond|)} [69] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {540#(<= 1 __VERIFIER_assert_~cond)} is VALID
[2022-04-08 01:09:26,455 INFO L272 TraceCheckUtils]: 16: Hoare triple {556#(= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))} [65] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~x~0_10 v_main_~z~0_8) (* (- 1) v_main_~x~0_10) v_main_~a~0_8 (* (- 1) (* v_main_~y~0_9 v_main_~az~0_7))) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~az~0=v_main_~az~0_7, main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {536#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID
[2022-04-08 01:09:26,456 INFO L290 TraceCheckUtils]: 15: Hoare triple {556#(= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))} [66] L34-1-->L34-4: Formula: (not (< |v_main_#t~post7_2| 1)) InVars {main_#t~post7=|v_main_#t~post7_2|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {556#(= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))} is VALID
[2022-04-08 01:09:26,457 INFO L290 TraceCheckUtils]: 14: Hoare triple {556#(= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {556#(= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))} is VALID
[2022-04-08 01:09:26,508 INFO L290 TraceCheckUtils]: 13: Hoare triple {566#(= (+ (* main_~z~0 main_~x~0) main_~a~0 (* main_~az~0 (* main_~z~0 main_~y~0))) (+ main_~a~0 (* main_~z~0 (+ (* main_~z~0 main_~x~0) main_~a~0))))} [75] L35-1-->L34-3: Formula: (and (= (+ v_main_~a~0_5 (* v_main_~x~0_6 v_main_~z~0_5)) v_main_~x~0_5) (= v_main_~y~0_5 (* v_main_~y~0_6 v_main_~z~0_5)) (< v_main_~c~0_6 v_main_~k~0_5) (= (+ v_main_~c~0_6 1) v_main_~c~0_5)) InVars {main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_5, main_~k~0=v_main_~k~0_5, main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_5, main_~k~0=v_main_~k~0_5, main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_5, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {556#(= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))} is VALID
[2022-04-08 01:09:26,512 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {515#(not (= |__VERIFIER_assert_#in~cond| 0))} {478#true} [81] __VERIFIER_assertEXIT-->L35-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {566#(= (+ (* main_~z~0 main_~x~0) main_~a~0 (* main_~az~0 (* main_~z~0 main_~y~0))) (+ main_~a~0 (* main_~z~0 (+ (* main_~z~0 main_~x~0) main_~a~0))))} is VALID
[2022-04-08 01:09:26,513 INFO L290 TraceCheckUtils]: 11: Hoare triple {515#(not (= |__VERIFIER_assert_#in~cond| 0))} [78] L15-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {515#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID
[2022-04-08 01:09:26,514 INFO L290 TraceCheckUtils]: 10: Hoare triple {579#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} [73] L15-->L15-2: Formula: (not (= v___VERIFIER_assert_~cond_3 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {515#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID
[2022-04-08 01:09:26,514 INFO L290 TraceCheckUtils]: 9: Hoare triple {478#true} [69] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {579#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID
[2022-04-08 01:09:26,514 INFO L272 TraceCheckUtils]: 8: Hoare triple {478#true} [70] L35-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {478#true} is VALID
[2022-04-08 01:09:26,514 INFO L290 TraceCheckUtils]: 7: Hoare triple {478#true} [67] L34-1-->L35: Formula: (< |v_main_#t~post7_4| 1) InVars {main_#t~post7=|v_main_#t~post7_4|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {478#true} is VALID
[2022-04-08 01:09:26,515 INFO L290 TraceCheckUtils]: 6: Hoare triple {478#true} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {478#true} is VALID
[2022-04-08 01:09:26,515 INFO L290 TraceCheckUtils]: 5: Hoare triple {478#true} [61] mainENTRY-->L34-3: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet5_2|) (<= |v_main_#t~nondet6_2| 2147483647) (= (* v_main_~a~0_2 v_main_~z~0_2) v_main_~az~0_2) (= v_main_~c~0_2 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet6_2| 2147483648)) (= v_main_~a~0_2 v_main_~x~0_2) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_2 |v_main_#t~nondet6_2|) (= v_main_~y~0_2 1) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|, main_#t~nondet6=|v_main_#t~nondet6_2|} OutVars{main_~az~0=v_main_~az~0_2, main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_2, main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~az~0, main_#t~nondet5, main_#t~nondet4, main_#t~nondet6, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0, main_~a~0] {478#true} is VALID
[2022-04-08 01:09:26,515 INFO L272 TraceCheckUtils]: 4: Hoare triple {478#true} [58] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {478#true} is VALID
[2022-04-08 01:09:26,515 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {478#true} {478#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {478#true} is VALID
[2022-04-08 01:09:26,515 INFO L290 TraceCheckUtils]: 2: Hoare triple {478#true} [62] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {478#true} is VALID
[2022-04-08 01:09:26,515 INFO L290 TraceCheckUtils]: 1: Hoare triple {478#true} [59] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {478#true} is VALID
[2022-04-08 01:09:26,515 INFO L272 TraceCheckUtils]: 0: Hoare triple {478#true} [57] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {478#true} is VALID
[2022-04-08 01:09:26,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-08 01:09:26,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-08 01:09:26,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658052507]
[2022-04-08 01:09:26,516 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-08 01:09:26,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816700817]
[2022-04-08 01:09:26,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816700817] provided 0 perfect and 2 imperfect interpolant sequences
[2022-04-08 01:09:26,516 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-04-08 01:09:26,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12
[2022-04-08 01:09:26,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697670292]
[2022-04-08 01:09:26,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-04-08 01:09:26,517 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20
[2022-04-08 01:09:26,517 INFO L84 Accepts]: Finished accepts. word is accepted.
[2022-04-08 01:09:26,518 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-08 01:09:26,629 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 01:09:26,630 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-04-08 01:09:26,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-08 01:09:26,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-04-08 01:09:26,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132
[2022-04-08 01:09:26,631 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-08 01:09:27,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 01:09:27,409 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions.
[2022-04-08 01:09:27,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-04-08 01:09:27,409 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20
[2022-04-08 01:09:27,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-08 01:09:27,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-08 01:09:27,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 32 transitions.
[2022-04-08 01:09:27,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-08 01:09:27,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 32 transitions.
[2022-04-08 01:09:27,413 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 32 transitions.
[2022-04-08 01:09:28,312 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 01:09:28,313 INFO L225 Difference]: With dead ends: 30
[2022-04-08 01:09:28,313 INFO L226 Difference]: Without dead ends: 0
[2022-04-08 01:09:28,316 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156
[2022-04-08 01:09:28,318 INFO L913 BasicCegarLoop]: 16 mSDtfsCounter, 18 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-04-08 01:09:28,321 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 88 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-04-08 01:09:28,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-04-08 01:09:28,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-04-08 01:09:28,323 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-08 01:09:28,323 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-08 01:09:28,323 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-08 01:09:28,324 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-08 01:09:28,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 01:09:28,324 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions.
[2022-04-08 01:09:28,324 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-04-08 01:09:28,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-08 01:09:28,324 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2022-04-08 01:09:28,324 INFO L74 IsIncluded]: Start isIncluded. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states.
[2022-04-08 01:09:28,324 INFO L87 Difference]: Start difference. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states.
[2022-04-08 01:09:28,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 01:09:28,325 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions.
[2022-04-08 01:09:28,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-04-08 01:09:28,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-08 01:09:28,325 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2022-04-08 01:09:28,325 INFO L88 GeneralOperation]: Finished isEquivalent.
[2022-04-08 01:09:28,325 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-08 01:09:28,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-08 01:09:28,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-04-08 01:09:28,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20
[2022-04-08 01:09:28,325 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-08 01:09:28,325 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-04-08 01:09:28,326 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-08 01:09:28,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-04-08 01:09:28,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-08 01:09:28,328 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-04-08 01:09:28,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-04-08 01:09:28,547 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-08 01:09:28,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-04-08 01:09:28,677 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true
[2022-04-08 01:09:28,678 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2022-04-08 01:09:28,678 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2022-04-08 01:09:28,678 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2022-04-08 01:09:28,678 INFO L878 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (<= ~counter~0 0)
[2022-04-08 01:09:28,678 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2022-04-08 01:09:28,678 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2022-04-08 01:09:28,678 INFO L878 garLoopResultBuilder]: At program point mainENTRY(lines 22 46) the Hoare annotation is: (or (not (<= |old(~counter~0)| 0)) (<= ~counter~0 0))
[2022-04-08 01:09:28,678 INFO L878 garLoopResultBuilder]: At program point L34-3(lines 34 43) the Hoare annotation is: (or (not (<= |old(~counter~0)| 0)) (= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0)))
[2022-04-08 01:09:28,678 INFO L878 garLoopResultBuilder]: At program point L34-4(lines 34 43) the Hoare annotation is: (or (not (<= |old(~counter~0)| 0)) (= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0)))
[2022-04-08 01:09:28,678 INFO L882 garLoopResultBuilder]: For program point L34-1(lines 34 43) no Hoare annotation was computed.
[2022-04-08 01:09:28,678 INFO L882 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed.
[2022-04-08 01:09:28,679 INFO L878 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (or (not (<= |old(~counter~0)| 0)) (= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0)))
[2022-04-08 01:09:28,679 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 22 46) no Hoare annotation was computed.
[2022-04-08 01:09:28,679 INFO L882 garLoopResultBuilder]: For program point L35-1(lines 34 43) no Hoare annotation was computed.
[2022-04-08 01:09:28,679 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 22 46) no Hoare annotation was computed.
[2022-04-08 01:09:28,679 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 20) the Hoare annotation is: true
[2022-04-08 01:09:28,679 INFO L882 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed.
[2022-04-08 01:09:28,679 INFO L882 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed.
[2022-04-08 01:09:28,679 INFO L882 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed.
[2022-04-08 01:09:28,679 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed.
[2022-04-08 01:09:28,679 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed.
[2022-04-08 01:09:28,686 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2022-04-08 01:09:28,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-04-08 01:09:28,689 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation
[2022-04-08 01:09:28,693 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation
[2022-04-08 01:09:28,693 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation
[2022-04-08 01:09:28,694 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation
[2022-04-08 01:09:28,694 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation
[2022-04-08 01:09:28,694 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation
[2022-04-08 01:09:28,694 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation
[2022-04-08 01:09:28,694 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation
[2022-04-08 01:09:28,694 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation
[2022-04-08 01:09:28,694 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation
[2022-04-08 01:09:28,694 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation
[2022-04-08 01:09:28,695 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation
[2022-04-08 01:09:28,695 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation
[2022-04-08 01:09:28,695 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation
[2022-04-08 01:09:28,695 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation
[2022-04-08 01:09:28,695 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation
[2022-04-08 01:09:28,695 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation
[2022-04-08 01:09:28,695 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation
[2022-04-08 01:09:28,695 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation
[2022-04-08 01:09:28,695 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation
[2022-04-08 01:09:28,695 INFO L163 areAnnotationChecker]: CFG has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing.
[2022-04-08 01:09:28,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.04 01:09:28 BasicIcfg
[2022-04-08 01:09:28,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-04-08 01:09:28,710 INFO L158 Benchmark]: Toolchain (without parser) took 71054.91ms. Allocated memory was 182.5MB in the beginning and 221.2MB in the end (delta: 38.8MB). Free memory was 131.0MB in the beginning and 140.1MB in the end (delta: -9.2MB). Peak memory consumption was 31.2MB. Max. memory is 8.0GB.
[2022-04-08 01:09:28,712 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-04-08 01:09:28,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.04ms. Allocated memory was 182.5MB in the beginning and 221.2MB in the end (delta: 38.8MB). Free memory was 130.7MB in the beginning and 196.8MB in the end (delta: -66.1MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB.
[2022-04-08 01:09:28,712 INFO L158 Benchmark]: Boogie Preprocessor took 35.26ms. Allocated memory is still 221.2MB. Free memory was 196.8MB in the beginning and 195.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-04-08 01:09:28,712 INFO L158 Benchmark]: RCFGBuilder took 307.78ms. Allocated memory is still 221.2MB. Free memory was 195.3MB in the beginning and 184.2MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
[2022-04-08 01:09:28,713 INFO L158 Benchmark]: IcfgTransformer took 22.40ms. Allocated memory is still 221.2MB. Free memory was 184.2MB in the beginning and 182.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-04-08 01:09:28,713 INFO L158 Benchmark]: TraceAbstraction took 70442.38ms. Allocated memory is still 221.2MB. Free memory was 182.1MB in the beginning and 140.1MB in the end (delta: 42.0MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB.
[2022-04-08 01:09:28,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- AssertionsEnabledResult: Assertions are enabled
Assertions are enabled
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 242.04ms. Allocated memory was 182.5MB in the beginning and 221.2MB in the end (delta: 38.8MB). Free memory was 130.7MB in the beginning and 196.8MB in the end (delta: -66.1MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 35.26ms. Allocated memory is still 221.2MB. Free memory was 196.8MB in the beginning and 195.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 307.78ms. Allocated memory is still 221.2MB. Free memory was 195.3MB in the beginning and 184.2MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
* IcfgTransformer took 22.40ms. Allocated memory is still 221.2MB. Free memory was 184.2MB in the beginning and 182.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* TraceAbstraction took 70442.38ms. Allocated memory is still 221.2MB. Free memory was 182.1MB in the beginning and 140.1MB in the end (delta: 42.0MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 17]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.4s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 214 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 141 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 73 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=3, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 16 PreInvPairs, 25 NumberOfFragments, 62 HoareAnnotationTreeSize, 16 FomulaSimplifications, 57 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 64 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 66.6s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 5 NumberOfNonLiveVariables, 341 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 4/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 34]: Loop Invariant
Derived loop invariant: !(\old(counter) <= 0) || y * az + x == z * x + a
RESULT: Ultimate proved your program to be correct!
[2022-04-08 01:09:28,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...