/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/divbin2_valuebound1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-08 00:19:32,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-08 00:19:32,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-08 00:19:32,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-08 00:19:32,728 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 00:19:32,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-08 00:19:32,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-08 00:19:32,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-08 00:19:32,767 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-08 00:19:32,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-08 00:19:32,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-08 00:19:32,768 INFO L138 SettingsManager]: * Use SBE=true [2022-04-08 00:19:32,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-08 00:19:32,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-08 00:19:32,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-08 00:19:32,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-08 00:19:32,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-08 00:19:32,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-08 00:19:32,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-08 00:19:32,770 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-08 00:19:32,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-08 00:19:32,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-08 00:19:32,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-08 00:19:32,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-08 00:19:32,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 00:19:32,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-08 00:19:32,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-08 00:19:32,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-08 00:19:32,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-08 00:19:32,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-08 00:19:32,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-08 00:19:32,772 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-08 00:19:32,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-08 00:19:32,773 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-08 00:19:32,773 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-08 00:19:33,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-08 00:19:33,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-08 00:19:33,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-08 00:19:33,054 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-08 00:19:33,055 INFO L275 PluginConnector]: CDTParser initialized [2022-04-08 00:19:33,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/divbin2_valuebound1.i [2022-04-08 00:19:33,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0554a906/6e78a9536c414bc88f17ddc5ce1c7529/FLAG77e1e7c04 [2022-04-08 00:19:33,548 INFO L306 CDTParser]: Found 1 translation units. [2022-04-08 00:19:33,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/divbin2_valuebound1.i [2022-04-08 00:19:33,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0554a906/6e78a9536c414bc88f17ddc5ce1c7529/FLAG77e1e7c04 [2022-04-08 00:19:33,564 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0554a906/6e78a9536c414bc88f17ddc5ce1c7529 [2022-04-08 00:19:33,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-08 00:19:33,568 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-08 00:19:33,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-08 00:19:33,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-08 00:19:33,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-08 00:19:33,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 12:19:33" (1/1) ... [2022-04-08 00:19:33,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6257a36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:19:33, skipping insertion in model container [2022-04-08 00:19:33,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 12:19:33" (1/1) ... [2022-04-08 00:19:33,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-08 00:19:33,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-08 00:19:33,737 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/divbin2_valuebound1.i[951,964] [2022-04-08 00:19:33,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 00:19:33,759 INFO L203 MainTranslator]: Completed pre-run [2022-04-08 00:19:33,770 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/divbin2_valuebound1.i[951,964] [2022-04-08 00:19:33,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 00:19:33,788 INFO L208 MainTranslator]: Completed translation [2022-04-08 00:19:33,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:19:33 WrapperNode [2022-04-08 00:19:33,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-08 00:19:33,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-08 00:19:33,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-08 00:19:33,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-08 00:19:33,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:19:33" (1/1) ... [2022-04-08 00:19:33,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:19:33" (1/1) ... [2022-04-08 00:19:33,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:19:33" (1/1) ... [2022-04-08 00:19:33,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:19:33" (1/1) ... [2022-04-08 00:19:33,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:19:33" (1/1) ... [2022-04-08 00:19:33,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:19:33" (1/1) ... [2022-04-08 00:19:33,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:19:33" (1/1) ... [2022-04-08 00:19:33,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-08 00:19:33,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-08 00:19:33,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-08 00:19:33,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-08 00:19:33,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:19:33" (1/1) ... [2022-04-08 00:19:33,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 00:19:33,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 00:19:33,855 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 00:19:33,861 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 00:19:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-08 00:19:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-08 00:19:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-08 00:19:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-08 00:19:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-08 00:19:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-08 00:19:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-08 00:19:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-08 00:19:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-08 00:19:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-08 00:19:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-08 00:19:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-08 00:19:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-04-08 00:19:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-08 00:19:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-08 00:19:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-08 00:19:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-08 00:19:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-08 00:19:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-08 00:19:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-08 00:19:33,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-08 00:19:33,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-08 00:19:33,949 INFO L234 CfgBuilder]: Building ICFG [2022-04-08 00:19:33,951 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-08 00:19:34,074 INFO L275 CfgBuilder]: Performing block encoding [2022-04-08 00:19:34,081 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-08 00:19:34,081 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-08 00:19:34,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 12:19:34 BoogieIcfgContainer [2022-04-08 00:19:34,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-08 00:19:34,083 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-08 00:19:34,083 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-08 00:19:34,084 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-08 00:19:34,087 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 12:19:34" (1/1) ... [2022-04-08 00:19:34,089 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-08 00:19:34,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 08.04 12:19:34 BasicIcfg [2022-04-08 00:19:34,112 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-08 00:19:34,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-08 00:19:34,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-08 00:19:34,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-08 00:19:34,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.04 12:19:33" (1/4) ... [2022-04-08 00:19:34,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b23c7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 12:19:34, skipping insertion in model container [2022-04-08 00:19:34,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 12:19:33" (2/4) ... [2022-04-08 00:19:34,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b23c7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 12:19:34, skipping insertion in model container [2022-04-08 00:19:34,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 12:19:34" (3/4) ... [2022-04-08 00:19:34,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b23c7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.04 12:19:34, skipping insertion in model container [2022-04-08 00:19:34,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 08.04 12:19:34" (4/4) ... [2022-04-08 00:19:34,119 INFO L111 eAbstractionObserver]: Analyzing ICFG divbin2_valuebound1.iqvasr [2022-04-08 00:19:34,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-08 00:19:34,128 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-08 00:19:34,170 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-08 00:19:34,176 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 00:19:34,177 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-08 00:19:34,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-08 00:19:34,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-08 00:19:34,231 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 00:19:34,232 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 00:19:34,233 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 00:19:34,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 00:19:34,238 INFO L85 PathProgramCache]: Analyzing trace with hash 483266332, now seen corresponding path program 1 times [2022-04-08 00:19:34,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 00:19:34,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340000168] [2022-04-08 00:19:34,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 00:19:34,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 00:19:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 00:19:34,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 00:19:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 00:19:34,455 INFO L290 TraceCheckUtils]: 0: Hoare triple {42#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [89] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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) (= (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{#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[#NULL.offset, #NULL.base] {33#true} is VALID [2022-04-08 00:19:34,455 INFO L290 TraceCheckUtils]: 1: Hoare triple {33#true} [92] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-08 00:19:34,456 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {33#true} {33#true} [121] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-08 00:19:34,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-08 00:19:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 00:19:34,479 INFO L290 TraceCheckUtils]: 0: Hoare triple {33#true} [95] assume_abort_if_notENTRY-->L16: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {33#true} is VALID [2022-04-08 00:19:34,481 INFO L290 TraceCheckUtils]: 1: Hoare triple {33#true} [99] L16-->L16-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-08 00:19:34,481 INFO L290 TraceCheckUtils]: 2: Hoare triple {34#false} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-08 00:19:34,482 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {34#false} {33#true} [122] assume_abort_if_notEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {34#false} is VALID [2022-04-08 00:19:34,484 INFO L272 TraceCheckUtils]: 0: Hoare triple {33#true} [87] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {42#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 00:19:34,485 INFO L290 TraceCheckUtils]: 1: Hoare triple {42#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [89] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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) (= (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{#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[#NULL.offset, #NULL.base] {33#true} is VALID [2022-04-08 00:19:34,486 INFO L290 TraceCheckUtils]: 2: Hoare triple {33#true} [92] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-08 00:19:34,486 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {33#true} {33#true} [121] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-08 00:19:34,486 INFO L272 TraceCheckUtils]: 4: Hoare triple {33#true} [88] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-08 00:19:34,486 INFO L290 TraceCheckUtils]: 5: Hoare triple {33#true} [91] mainENTRY-->L29: Formula: (= v_main_~A~0_2 |v_main_#t~nondet1_2|) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_2, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_3, main_~r~0=v_main_~r~0_2} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {33#true} is VALID [2022-04-08 00:19:34,487 INFO L272 TraceCheckUtils]: 6: Hoare triple {33#true} [93] L29-->assume_abort_if_notENTRY: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {33#true} is VALID [2022-04-08 00:19:34,488 INFO L290 TraceCheckUtils]: 7: Hoare triple {33#true} [95] assume_abort_if_notENTRY-->L16: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {33#true} is VALID [2022-04-08 00:19:34,489 INFO L290 TraceCheckUtils]: 8: Hoare triple {33#true} [99] L16-->L16-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-08 00:19:34,489 INFO L290 TraceCheckUtils]: 9: Hoare triple {34#false} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-08 00:19:34,490 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {34#false} {33#true} [122] assume_abort_if_notEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {34#false} is VALID [2022-04-08 00:19:34,491 INFO L290 TraceCheckUtils]: 11: Hoare triple {34#false} [94] L29-1-->L34-2: Formula: (and (= v_main_~B~0_4 v_main_~b~0_6) (= v_main_~q~0_5 0) (= v_main_~B~0_4 1) (= v_main_~A~0_6 v_main_~r~0_3)) InVars {main_~A~0=v_main_~A~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~B~0=v_main_~B~0_4, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_6, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_~B~0, main_~b~0, main_~r~0] {34#false} is VALID [2022-04-08 00:19:34,491 INFO L290 TraceCheckUtils]: 12: Hoare triple {34#false} [96] L34-2-->L43-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-08 00:19:34,491 INFO L290 TraceCheckUtils]: 13: Hoare triple {34#false} [101] L43-2-->L38-1: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-08 00:19:34,492 INFO L272 TraceCheckUtils]: 14: Hoare triple {34#false} [107] L38-1-->__VERIFIER_assertENTRY: Formula: (= (ite (= (mod (+ v_main_~r~0_11 (* v_main_~q~0_10 v_main_~b~0_14)) 4294967296) (mod v_main_~A~0_10 4294967296)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~q~0=v_main_~q~0_10, main_~A~0=v_main_~A~0_10, main_~b~0=v_main_~b~0_14, main_~r~0=v_main_~r~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {34#false} is VALID [2022-04-08 00:19:34,492 INFO L290 TraceCheckUtils]: 15: Hoare triple {34#false} [110] __VERIFIER_assertENTRY-->L19: 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] {34#false} is VALID [2022-04-08 00:19:34,492 INFO L290 TraceCheckUtils]: 16: Hoare triple {34#false} [114] L19-->L20: 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[] {34#false} is VALID [2022-04-08 00:19:34,493 INFO L290 TraceCheckUtils]: 17: Hoare triple {34#false} [118] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-08 00:19:34,493 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 00:19:34,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 00:19:34,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340000168] [2022-04-08 00:19:34,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340000168] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 00:19:34,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 00:19:34,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 00:19:34,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233196706] [2022-04-08 00:19:34,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 00:19:34,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-04-08 00:19:34,508 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 00:19:34,511 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:34,546 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 00:19:34,547 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-08 00:19:34,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-08 00:19:34,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-08 00:19:34,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-08 00:19:34,581 INFO L87 Difference]: Start difference. First operand has 30 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:34,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:34,713 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2022-04-08 00:19:34,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-08 00:19:34,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-04-08 00:19:34,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 00:19:34,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2022-04-08 00:19:34,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:34,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2022-04-08 00:19:34,728 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 70 transitions. [2022-04-08 00:19:34,802 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 00:19:34,810 INFO L225 Difference]: With dead ends: 51 [2022-04-08 00:19:34,810 INFO L226 Difference]: Without dead ends: 25 [2022-04-08 00:19:34,813 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-08 00:19:34,817 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-08 00:19:34,817 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 33 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-08 00:19:34,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-04-08 00:19:34,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-04-08 00:19:34,852 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 00:19:34,855 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 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 00:19:34,857 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 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 00:19:34,857 INFO L87 Difference]: Start difference. First operand 25 states. Second operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 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 00:19:34,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:34,864 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-04-08 00:19:34,864 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-08 00:19:34,865 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 00:19:34,865 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 00:19:34,866 INFO L74 IsIncluded]: Start isIncluded. First operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 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 00:19:34,866 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 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 00:19:34,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:34,869 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-04-08 00:19:34,869 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-08 00:19:34,869 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 00:19:34,869 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 00:19:34,869 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 00:19:34,870 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 00:19:34,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 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 00:19:34,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-04-08 00:19:34,873 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 18 [2022-04-08 00:19:34,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 00:19:34,874 INFO L478 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-04-08 00:19:34,874 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:34,874 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-08 00:19:34,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-04-08 00:19:34,875 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 00:19:34,875 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 00:19:34,875 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-08 00:19:34,876 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 00:19:34,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 00:19:34,876 INFO L85 PathProgramCache]: Analyzing trace with hash -2138426952, now seen corresponding path program 1 times [2022-04-08 00:19:34,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 00:19:34,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481370211] [2022-04-08 00:19:34,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 00:19:34,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 00:19:34,895 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 00:19:34,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [18819388] [2022-04-08 00:19:34,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 00:19:34,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 00:19:34,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 00:19:34,897 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 00:19:34,918 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 00:19:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 00:19:34,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 17 conjunts are in the unsatisfiable core [2022-04-08 00:19:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 00:19:34,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 00:19:35,416 INFO L272 TraceCheckUtils]: 0: Hoare triple {195#true} [87] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {195#true} is VALID [2022-04-08 00:19:35,416 INFO L290 TraceCheckUtils]: 1: Hoare triple {195#true} [89] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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) (= (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{#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[#NULL.offset, #NULL.base] {195#true} is VALID [2022-04-08 00:19:35,416 INFO L290 TraceCheckUtils]: 2: Hoare triple {195#true} [92] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {195#true} is VALID [2022-04-08 00:19:35,417 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {195#true} {195#true} [121] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {195#true} is VALID [2022-04-08 00:19:35,417 INFO L272 TraceCheckUtils]: 4: Hoare triple {195#true} [88] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {195#true} is VALID [2022-04-08 00:19:35,417 INFO L290 TraceCheckUtils]: 5: Hoare triple {195#true} [91] mainENTRY-->L29: Formula: (= v_main_~A~0_2 |v_main_#t~nondet1_2|) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_2, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_3, main_~r~0=v_main_~r~0_2} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {195#true} is VALID [2022-04-08 00:19:35,417 INFO L272 TraceCheckUtils]: 6: Hoare triple {195#true} [93] L29-->assume_abort_if_notENTRY: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {195#true} is VALID [2022-04-08 00:19:35,419 INFO L290 TraceCheckUtils]: 7: Hoare triple {195#true} [95] assume_abort_if_notENTRY-->L16: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {221#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-08 00:19:35,421 INFO L290 TraceCheckUtils]: 8: Hoare triple {221#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [100] L16-->L16-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {225#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-08 00:19:35,421 INFO L290 TraceCheckUtils]: 9: Hoare triple {225#(not (= |assume_abort_if_not_#in~cond| 0))} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {225#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-08 00:19:35,422 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {225#(not (= |assume_abort_if_not_#in~cond| 0))} {195#true} [122] assume_abort_if_notEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {232#(<= (mod main_~A~0 4294967296) 1)} is VALID [2022-04-08 00:19:35,423 INFO L290 TraceCheckUtils]: 11: Hoare triple {232#(<= (mod main_~A~0 4294967296) 1)} [94] L29-1-->L34-2: Formula: (and (= v_main_~B~0_4 v_main_~b~0_6) (= v_main_~q~0_5 0) (= v_main_~B~0_4 1) (= v_main_~A~0_6 v_main_~r~0_3)) InVars {main_~A~0=v_main_~A~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~B~0=v_main_~B~0_4, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_6, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_~B~0, main_~b~0, main_~r~0] {236#(and (= main_~b~0 1) (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (= main_~q~0 0))} is VALID [2022-04-08 00:19:35,424 INFO L290 TraceCheckUtils]: 12: Hoare triple {236#(and (= main_~b~0 1) (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (= main_~q~0 0))} [98] L34-2-->L35: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {236#(and (= main_~b~0 1) (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (= main_~q~0 0))} is VALID [2022-04-08 00:19:35,425 INFO L290 TraceCheckUtils]: 13: Hoare triple {236#(and (= main_~b~0 1) (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (= main_~q~0 0))} [104] L35-->L43-2: Formula: (not (<= (mod v_main_~b~0_10 4294967296) (mod v_main_~r~0_8 4294967296))) InVars {main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_8} OutVars{main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_8} AuxVars[] AssignedVars[] {243#(and (= main_~b~0 1) (= main_~A~0 main_~r~0) (< (mod main_~r~0 4294967296) (mod main_~b~0 4294967296)) (= main_~q~0 0))} is VALID [2022-04-08 00:19:35,426 INFO L290 TraceCheckUtils]: 14: Hoare triple {243#(and (= main_~b~0 1) (= main_~A~0 main_~r~0) (< (mod main_~r~0 4294967296) (mod main_~b~0 4294967296)) (= main_~q~0 0))} [103] L43-2-->L39: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {243#(and (= main_~b~0 1) (= main_~A~0 main_~r~0) (< (mod main_~r~0 4294967296) (mod main_~b~0 4294967296)) (= main_~q~0 0))} is VALID [2022-04-08 00:19:35,428 INFO L272 TraceCheckUtils]: 15: Hoare triple {243#(and (= main_~b~0 1) (= main_~A~0 main_~r~0) (< (mod main_~r~0 4294967296) (mod main_~b~0 4294967296)) (= main_~q~0 0))} [108] L39-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_9 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_9, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {250#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 00:19:35,428 INFO L290 TraceCheckUtils]: 16: Hoare triple {250#(<= 1 |__VERIFIER_assert_#in~cond|)} [110] __VERIFIER_assertENTRY-->L19: 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] {254#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 00:19:35,429 INFO L290 TraceCheckUtils]: 17: Hoare triple {254#(<= 1 __VERIFIER_assert_~cond)} [114] L19-->L20: 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[] {196#false} is VALID [2022-04-08 00:19:35,429 INFO L290 TraceCheckUtils]: 18: Hoare triple {196#false} [118] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {196#false} is VALID [2022-04-08 00:19:35,430 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 00:19:35,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-08 00:19:35,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 00:19:35,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481370211] [2022-04-08 00:19:35,431 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 00:19:35,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18819388] [2022-04-08 00:19:35,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18819388] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 00:19:35,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 00:19:35,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-08 00:19:35,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035537183] [2022-04-08 00:19:35,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 00:19:35,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-04-08 00:19:35,441 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 00:19:35,441 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:35,464 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 00:19:35,464 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-08 00:19:35,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-08 00:19:35,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-08 00:19:35,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-04-08 00:19:35,465 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:35,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:35,833 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-04-08 00:19:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-08 00:19:35,833 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-04-08 00:19:35,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 00:19:35,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2022-04-08 00:19:35,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:35,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2022-04-08 00:19:35,839 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 42 transitions. [2022-04-08 00:19:35,896 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 00:19:35,898 INFO L225 Difference]: With dead ends: 37 [2022-04-08 00:19:35,898 INFO L226 Difference]: Without dead ends: 34 [2022-04-08 00:19:35,898 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-04-08 00:19:35,899 INFO L913 BasicCegarLoop]: 19 mSDtfsCounter, 21 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-08 00:19:35,901 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 104 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-08 00:19:35,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-04-08 00:19:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-04-08 00:19:35,912 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 00:19:35,912 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand has 34 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 24 states have internal predecessors, (28), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 00:19:35,913 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand has 34 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 24 states have internal predecessors, (28), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 00:19:35,913 INFO L87 Difference]: Start difference. First operand 34 states. Second operand has 34 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 24 states have internal predecessors, (28), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 00:19:35,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:35,915 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-04-08 00:19:35,915 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-04-08 00:19:35,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 00:19:35,916 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 00:19:35,916 INFO L74 IsIncluded]: Start isIncluded. First operand has 34 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 24 states have internal predecessors, (28), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 34 states. [2022-04-08 00:19:35,917 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 24 states have internal predecessors, (28), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 34 states. [2022-04-08 00:19:35,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:35,919 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-04-08 00:19:35,920 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-04-08 00:19:35,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 00:19:35,920 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 00:19:35,920 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 00:19:35,920 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 00:19:35,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 24 states have internal predecessors, (28), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 00:19:35,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2022-04-08 00:19:35,922 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 19 [2022-04-08 00:19:35,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 00:19:35,923 INFO L478 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2022-04-08 00:19:35,923 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:35,923 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-04-08 00:19:35,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-04-08 00:19:35,924 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 00:19:35,924 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 00:19:35,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-08 00:19:36,143 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 00:19:36,144 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 00:19:36,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 00:19:36,145 INFO L85 PathProgramCache]: Analyzing trace with hash -554838191, now seen corresponding path program 1 times [2022-04-08 00:19:36,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 00:19:36,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304760080] [2022-04-08 00:19:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 00:19:36,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 00:19:36,162 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 00:19:36,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1356523722] [2022-04-08 00:19:36,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 00:19:36,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 00:19:36,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 00:19:36,171 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 00:19:36,193 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 00:19:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 00:19:36,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjunts are in the unsatisfiable core [2022-04-08 00:19:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 00:19:36,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 00:19:36,721 INFO L272 TraceCheckUtils]: 0: Hoare triple {430#true} [87] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {430#true} is VALID [2022-04-08 00:19:36,722 INFO L290 TraceCheckUtils]: 1: Hoare triple {430#true} [89] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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) (= (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{#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[#NULL.offset, #NULL.base] {430#true} is VALID [2022-04-08 00:19:36,722 INFO L290 TraceCheckUtils]: 2: Hoare triple {430#true} [92] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {430#true} is VALID [2022-04-08 00:19:36,722 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {430#true} {430#true} [121] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {430#true} is VALID [2022-04-08 00:19:36,722 INFO L272 TraceCheckUtils]: 4: Hoare triple {430#true} [88] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {430#true} is VALID [2022-04-08 00:19:36,722 INFO L290 TraceCheckUtils]: 5: Hoare triple {430#true} [91] mainENTRY-->L29: Formula: (= v_main_~A~0_2 |v_main_#t~nondet1_2|) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_2, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_3, main_~r~0=v_main_~r~0_2} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {430#true} is VALID [2022-04-08 00:19:36,723 INFO L272 TraceCheckUtils]: 6: Hoare triple {430#true} [93] L29-->assume_abort_if_notENTRY: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {430#true} is VALID [2022-04-08 00:19:36,726 INFO L290 TraceCheckUtils]: 7: Hoare triple {430#true} [95] assume_abort_if_notENTRY-->L16: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {456#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-08 00:19:36,727 INFO L290 TraceCheckUtils]: 8: Hoare triple {456#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [100] L16-->L16-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {460#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-08 00:19:36,728 INFO L290 TraceCheckUtils]: 9: Hoare triple {460#(not (= |assume_abort_if_not_#in~cond| 0))} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {460#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-08 00:19:36,729 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {460#(not (= |assume_abort_if_not_#in~cond| 0))} {430#true} [122] assume_abort_if_notEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {467#(<= (mod main_~A~0 4294967296) 1)} is VALID [2022-04-08 00:19:36,730 INFO L290 TraceCheckUtils]: 11: Hoare triple {467#(<= (mod main_~A~0 4294967296) 1)} [94] L29-1-->L34-2: Formula: (and (= v_main_~B~0_4 v_main_~b~0_6) (= v_main_~q~0_5 0) (= v_main_~B~0_4 1) (= v_main_~A~0_6 v_main_~r~0_3)) InVars {main_~A~0=v_main_~A~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~B~0=v_main_~B~0_4, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_6, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_~B~0, main_~b~0, main_~r~0] {471#(and (= main_~b~0 1) (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (= main_~q~0 0))} is VALID [2022-04-08 00:19:36,730 INFO L290 TraceCheckUtils]: 12: Hoare triple {471#(and (= main_~b~0 1) (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (= main_~q~0 0))} [98] L34-2-->L35: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {471#(and (= main_~b~0 1) (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (= main_~q~0 0))} is VALID [2022-04-08 00:19:36,731 INFO L290 TraceCheckUtils]: 13: Hoare triple {471#(and (= main_~b~0 1) (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (= main_~q~0 0))} [105] L35-->L34-2: Formula: (and (<= (mod v_main_~b~0_12 4294967296) (mod v_main_~r~0_9 4294967296)) (= (* 2 v_main_~b~0_12) v_main_~b~0_11)) InVars {main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} OutVars{main_~b~0=v_main_~b~0_11, main_~r~0=v_main_~r~0_9} AuxVars[] AssignedVars[main_~b~0] {478#(and (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (<= 1 (mod main_~r~0 4294967296)) (= main_~q~0 0))} is VALID [2022-04-08 00:19:36,731 INFO L290 TraceCheckUtils]: 14: Hoare triple {478#(and (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (<= 1 (mod main_~r~0 4294967296)) (= main_~q~0 0))} [98] L34-2-->L35: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {478#(and (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (<= 1 (mod main_~r~0 4294967296)) (= main_~q~0 0))} is VALID [2022-04-08 00:19:36,732 INFO L290 TraceCheckUtils]: 15: Hoare triple {478#(and (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (<= 1 (mod main_~r~0 4294967296)) (= main_~q~0 0))} [104] L35-->L43-2: Formula: (not (<= (mod v_main_~b~0_10 4294967296) (mod v_main_~r~0_8 4294967296))) InVars {main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_8} OutVars{main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_8} AuxVars[] AssignedVars[] {478#(and (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (<= 1 (mod main_~r~0 4294967296)) (= main_~q~0 0))} is VALID [2022-04-08 00:19:36,732 INFO L290 TraceCheckUtils]: 16: Hoare triple {478#(and (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (<= 1 (mod main_~r~0 4294967296)) (= main_~q~0 0))} [103] L43-2-->L39: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {478#(and (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (<= 1 (mod main_~r~0 4294967296)) (= main_~q~0 0))} is VALID [2022-04-08 00:19:36,734 INFO L272 TraceCheckUtils]: 17: Hoare triple {478#(and (= main_~A~0 main_~r~0) (<= (mod main_~A~0 4294967296) 1) (<= 1 (mod main_~r~0 4294967296)) (= main_~q~0 0))} [108] L39-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_9 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_9, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {491#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 00:19:36,734 INFO L290 TraceCheckUtils]: 18: Hoare triple {491#(<= 1 |__VERIFIER_assert_#in~cond|)} [110] __VERIFIER_assertENTRY-->L19: 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] {495#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 00:19:36,735 INFO L290 TraceCheckUtils]: 19: Hoare triple {495#(<= 1 __VERIFIER_assert_~cond)} [114] L19-->L20: 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[] {431#false} is VALID [2022-04-08 00:19:36,735 INFO L290 TraceCheckUtils]: 20: Hoare triple {431#false} [118] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {431#false} is VALID [2022-04-08 00:19:36,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 00:19:36,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 00:19:37,276 INFO L290 TraceCheckUtils]: 20: Hoare triple {431#false} [118] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {431#false} is VALID [2022-04-08 00:19:37,277 INFO L290 TraceCheckUtils]: 19: Hoare triple {495#(<= 1 __VERIFIER_assert_~cond)} [114] L19-->L20: 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[] {431#false} is VALID [2022-04-08 00:19:37,278 INFO L290 TraceCheckUtils]: 18: Hoare triple {491#(<= 1 |__VERIFIER_assert_#in~cond|)} [110] __VERIFIER_assertENTRY-->L19: 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] {495#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 00:19:37,283 INFO L272 TraceCheckUtils]: 17: Hoare triple {511#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} [108] L39-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_9 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_9, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {491#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 00:19:37,284 INFO L290 TraceCheckUtils]: 16: Hoare triple {511#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} [103] L43-2-->L39: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {511#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} is VALID [2022-04-08 00:19:37,285 INFO L290 TraceCheckUtils]: 15: Hoare triple {511#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} [104] L35-->L43-2: Formula: (not (<= (mod v_main_~b~0_10 4294967296) (mod v_main_~r~0_8 4294967296))) InVars {main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_8} OutVars{main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_8} AuxVars[] AssignedVars[] {511#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} is VALID [2022-04-08 00:19:37,285 INFO L290 TraceCheckUtils]: 14: Hoare triple {511#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} [98] L34-2-->L35: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {511#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} is VALID [2022-04-08 00:19:37,286 INFO L290 TraceCheckUtils]: 13: Hoare triple {524#(or (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))))} [105] L35-->L34-2: Formula: (and (<= (mod v_main_~b~0_12 4294967296) (mod v_main_~r~0_9 4294967296)) (= (* 2 v_main_~b~0_12) v_main_~b~0_11)) InVars {main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} OutVars{main_~b~0=v_main_~b~0_11, main_~r~0=v_main_~r~0_9} AuxVars[] AssignedVars[main_~b~0] {511#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} is VALID [2022-04-08 00:19:37,287 INFO L290 TraceCheckUtils]: 12: Hoare triple {524#(or (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))))} [98] L34-2-->L35: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {524#(or (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))))} is VALID [2022-04-08 00:19:37,288 INFO L290 TraceCheckUtils]: 11: Hoare triple {430#true} [94] L29-1-->L34-2: Formula: (and (= v_main_~B~0_4 v_main_~b~0_6) (= v_main_~q~0_5 0) (= v_main_~B~0_4 1) (= v_main_~A~0_6 v_main_~r~0_3)) InVars {main_~A~0=v_main_~A~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~B~0=v_main_~B~0_4, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_6, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_~B~0, main_~b~0, main_~r~0] {524#(or (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))))} is VALID [2022-04-08 00:19:37,288 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {430#true} {430#true} [122] assume_abort_if_notEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {430#true} is VALID [2022-04-08 00:19:37,288 INFO L290 TraceCheckUtils]: 9: Hoare triple {430#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {430#true} is VALID [2022-04-08 00:19:37,289 INFO L290 TraceCheckUtils]: 8: Hoare triple {430#true} [100] L16-->L16-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {430#true} is VALID [2022-04-08 00:19:37,289 INFO L290 TraceCheckUtils]: 7: Hoare triple {430#true} [95] assume_abort_if_notENTRY-->L16: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {430#true} is VALID [2022-04-08 00:19:37,289 INFO L272 TraceCheckUtils]: 6: Hoare triple {430#true} [93] L29-->assume_abort_if_notENTRY: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {430#true} is VALID [2022-04-08 00:19:37,289 INFO L290 TraceCheckUtils]: 5: Hoare triple {430#true} [91] mainENTRY-->L29: Formula: (= v_main_~A~0_2 |v_main_#t~nondet1_2|) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_2, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_3, main_~r~0=v_main_~r~0_2} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {430#true} is VALID [2022-04-08 00:19:37,289 INFO L272 TraceCheckUtils]: 4: Hoare triple {430#true} [88] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {430#true} is VALID [2022-04-08 00:19:37,289 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {430#true} {430#true} [121] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {430#true} is VALID [2022-04-08 00:19:37,290 INFO L290 TraceCheckUtils]: 2: Hoare triple {430#true} [92] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {430#true} is VALID [2022-04-08 00:19:37,291 INFO L290 TraceCheckUtils]: 1: Hoare triple {430#true} [89] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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) (= (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{#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[#NULL.offset, #NULL.base] {430#true} is VALID [2022-04-08 00:19:37,291 INFO L272 TraceCheckUtils]: 0: Hoare triple {430#true} [87] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {430#true} is VALID [2022-04-08 00:19:37,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 00:19:37,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 00:19:37,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304760080] [2022-04-08 00:19:37,294 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 00:19:37,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356523722] [2022-04-08 00:19:37,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356523722] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-08 00:19:37,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-08 00:19:37,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2022-04-08 00:19:37,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407847025] [2022-04-08 00:19:37,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 00:19:37,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-04-08 00:19:37,296 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 00:19:37,296 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:37,679 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 00:19:37,679 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-08 00:19:37,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-08 00:19:37,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-08 00:19:37,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-04-08 00:19:37,681 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:37,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:37,822 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2022-04-08 00:19:37,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-08 00:19:37,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-04-08 00:19:37,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 00:19:37,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:37,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 39 transitions. [2022-04-08 00:19:37,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:37,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 39 transitions. [2022-04-08 00:19:37,827 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 39 transitions. [2022-04-08 00:19:39,923 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 38 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-08 00:19:39,924 INFO L225 Difference]: With dead ends: 42 [2022-04-08 00:19:39,925 INFO L226 Difference]: Without dead ends: 40 [2022-04-08 00:19:39,925 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-04-08 00:19:39,926 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 6 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-08 00:19:39,926 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 116 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 25 Unchecked, 0.0s Time] [2022-04-08 00:19:39,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-04-08 00:19:39,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-04-08 00:19:39,937 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 00:19:39,937 INFO L82 GeneralOperation]: Start isEquivalent. First operand 40 states. Second operand has 40 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 29 states have internal predecessors, (32), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-08 00:19:39,938 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand has 40 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 29 states have internal predecessors, (32), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-08 00:19:39,938 INFO L87 Difference]: Start difference. First operand 40 states. Second operand has 40 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 29 states have internal predecessors, (32), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-08 00:19:39,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:39,940 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-04-08 00:19:39,940 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2022-04-08 00:19:39,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 00:19:39,941 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 00:19:39,941 INFO L74 IsIncluded]: Start isIncluded. First operand has 40 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 29 states have internal predecessors, (32), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 40 states. [2022-04-08 00:19:39,941 INFO L87 Difference]: Start difference. First operand has 40 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 29 states have internal predecessors, (32), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 40 states. [2022-04-08 00:19:39,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:39,943 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-04-08 00:19:39,943 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2022-04-08 00:19:39,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 00:19:39,944 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 00:19:39,944 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 00:19:39,944 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 00:19:39,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 29 states have internal predecessors, (32), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-08 00:19:39,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2022-04-08 00:19:39,946 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 21 [2022-04-08 00:19:39,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 00:19:39,946 INFO L478 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2022-04-08 00:19:39,946 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-08 00:19:39,947 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2022-04-08 00:19:39,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-04-08 00:19:39,947 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 00:19:39,947 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 00:19:39,987 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 00:19:40,159 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,SelfDestructingSolverStorable2 [2022-04-08 00:19:40,160 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 00:19:40,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 00:19:40,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1600606598, now seen corresponding path program 1 times [2022-04-08 00:19:40,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 00:19:40,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826408410] [2022-04-08 00:19:40,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 00:19:40,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 00:19:40,173 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 00:19:40,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586335017] [2022-04-08 00:19:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 00:19:40,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 00:19:40,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 00:19:40,175 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 00:19:40,183 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 00:19:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 00:19:40,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-08 00:19:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 00:19:40,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 00:19:40,348 INFO L272 TraceCheckUtils]: 0: Hoare triple {760#true} [87] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {760#true} is VALID [2022-04-08 00:19:40,349 INFO L290 TraceCheckUtils]: 1: Hoare triple {760#true} [89] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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) (= (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{#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[#NULL.offset, #NULL.base] {760#true} is VALID [2022-04-08 00:19:40,349 INFO L290 TraceCheckUtils]: 2: Hoare triple {760#true} [92] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {760#true} is VALID [2022-04-08 00:19:40,349 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {760#true} {760#true} [121] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {760#true} is VALID [2022-04-08 00:19:40,349 INFO L272 TraceCheckUtils]: 4: Hoare triple {760#true} [88] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {760#true} is VALID [2022-04-08 00:19:40,349 INFO L290 TraceCheckUtils]: 5: Hoare triple {760#true} [91] mainENTRY-->L29: Formula: (= v_main_~A~0_2 |v_main_#t~nondet1_2|) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_2, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_3, main_~r~0=v_main_~r~0_2} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {760#true} is VALID [2022-04-08 00:19:40,349 INFO L272 TraceCheckUtils]: 6: Hoare triple {760#true} [93] L29-->assume_abort_if_notENTRY: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {760#true} is VALID [2022-04-08 00:19:40,350 INFO L290 TraceCheckUtils]: 7: Hoare triple {760#true} [95] assume_abort_if_notENTRY-->L16: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {760#true} is VALID [2022-04-08 00:19:40,350 INFO L290 TraceCheckUtils]: 8: Hoare triple {760#true} [100] L16-->L16-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {760#true} is VALID [2022-04-08 00:19:40,350 INFO L290 TraceCheckUtils]: 9: Hoare triple {760#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {760#true} is VALID [2022-04-08 00:19:40,350 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {760#true} {760#true} [122] assume_abort_if_notEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {760#true} is VALID [2022-04-08 00:19:40,351 INFO L290 TraceCheckUtils]: 11: Hoare triple {760#true} [94] L29-1-->L34-2: Formula: (and (= v_main_~B~0_4 v_main_~b~0_6) (= v_main_~q~0_5 0) (= v_main_~B~0_4 1) (= v_main_~A~0_6 v_main_~r~0_3)) InVars {main_~A~0=v_main_~A~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~B~0=v_main_~B~0_4, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_6, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_~B~0, main_~b~0, main_~r~0] {798#(and (= main_~B~0 main_~b~0) (= main_~B~0 1))} is VALID [2022-04-08 00:19:40,352 INFO L290 TraceCheckUtils]: 12: Hoare triple {798#(and (= main_~B~0 main_~b~0) (= main_~B~0 1))} [98] L34-2-->L35: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {798#(and (= main_~B~0 main_~b~0) (= main_~B~0 1))} is VALID [2022-04-08 00:19:40,353 INFO L290 TraceCheckUtils]: 13: Hoare triple {798#(and (= main_~B~0 main_~b~0) (= main_~B~0 1))} [104] L35-->L43-2: Formula: (not (<= (mod v_main_~b~0_10 4294967296) (mod v_main_~r~0_8 4294967296))) InVars {main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_8} OutVars{main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_8} AuxVars[] AssignedVars[] {798#(and (= main_~B~0 main_~b~0) (= main_~B~0 1))} is VALID [2022-04-08 00:19:40,353 INFO L290 TraceCheckUtils]: 14: Hoare triple {798#(and (= main_~B~0 main_~b~0) (= main_~B~0 1))} [103] L43-2-->L39: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {798#(and (= main_~B~0 main_~b~0) (= main_~B~0 1))} is VALID [2022-04-08 00:19:40,354 INFO L272 TraceCheckUtils]: 15: Hoare triple {798#(and (= main_~B~0 main_~b~0) (= main_~B~0 1))} [108] L39-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_9 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_9, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {760#true} is VALID [2022-04-08 00:19:40,356 INFO L290 TraceCheckUtils]: 16: Hoare triple {760#true} [110] __VERIFIER_assertENTRY-->L19: 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] {760#true} is VALID [2022-04-08 00:19:40,357 INFO L290 TraceCheckUtils]: 17: Hoare triple {760#true} [115] L19-->L19-2: 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[] {760#true} is VALID [2022-04-08 00:19:40,357 INFO L290 TraceCheckUtils]: 18: Hoare triple {760#true} [120] L19-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {760#true} is VALID [2022-04-08 00:19:40,358 INFO L284 TraceCheckUtils]: 19: Hoare quadruple {760#true} {798#(and (= main_~B~0 main_~b~0) (= main_~B~0 1))} [124] __VERIFIER_assertEXIT-->L39-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_9 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_9, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {798#(and (= main_~B~0 main_~b~0) (= main_~B~0 1))} is VALID [2022-04-08 00:19:40,359 INFO L290 TraceCheckUtils]: 20: Hoare triple {798#(and (= main_~B~0 main_~b~0) (= main_~B~0 1))} [112] L39-1-->L43: Formula: (let ((.cse0 (mod v_main_~b~0_5 4294967296))) (and (not (= (mod v_main_~B~0_3 4294967296) .cse0)) (= v_main_~b~0_4 (div .cse0 2)) (= v_main_~q~0_3 (* v_main_~q~0_4 2)))) InVars {main_~q~0=v_main_~q~0_4, main_~B~0=v_main_~B~0_3, main_~b~0=v_main_~b~0_5} OutVars{main_~q~0=v_main_~q~0_3, main_~B~0=v_main_~B~0_3, main_~b~0=v_main_~b~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0] {761#false} is VALID [2022-04-08 00:19:40,359 INFO L290 TraceCheckUtils]: 21: Hoare triple {761#false} [116] L43-->L43-2: Formula: (and (= (+ v_main_~q~0_7 1) v_main_~q~0_6) (= v_main_~r~0_4 (+ (* (- 1) v_main_~b~0_7) v_main_~r~0_5)) (<= (mod v_main_~b~0_7 4294967296) (mod v_main_~r~0_5 4294967296))) InVars {main_~q~0=v_main_~q~0_7, main_~b~0=v_main_~b~0_7, main_~r~0=v_main_~r~0_5} OutVars{main_~q~0=v_main_~q~0_6, main_~b~0=v_main_~b~0_7, main_~r~0=v_main_~r~0_4} AuxVars[] AssignedVars[main_~q~0, main_~r~0] {761#false} is VALID [2022-04-08 00:19:40,360 INFO L290 TraceCheckUtils]: 22: Hoare triple {761#false} [103] L43-2-->L39: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {761#false} is VALID [2022-04-08 00:19:40,360 INFO L272 TraceCheckUtils]: 23: Hoare triple {761#false} [108] L39-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_9 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_9, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {761#false} is VALID [2022-04-08 00:19:40,360 INFO L290 TraceCheckUtils]: 24: Hoare triple {761#false} [110] __VERIFIER_assertENTRY-->L19: 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] {761#false} is VALID [2022-04-08 00:19:40,361 INFO L290 TraceCheckUtils]: 25: Hoare triple {761#false} [114] L19-->L20: 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[] {761#false} is VALID [2022-04-08 00:19:40,362 INFO L290 TraceCheckUtils]: 26: Hoare triple {761#false} [118] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {761#false} is VALID [2022-04-08 00:19:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 00:19:40,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-08 00:19:40,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 00:19:40,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826408410] [2022-04-08 00:19:40,363 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 00:19:40,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586335017] [2022-04-08 00:19:40,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586335017] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 00:19:40,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 00:19:40,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 00:19:40,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303805083] [2022-04-08 00:19:40,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 00:19:40,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2022-04-08 00:19:40,364 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 00:19:40,365 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 00:19:40,387 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 00:19:40,387 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-08 00:19:40,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-08 00:19:40,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-08 00:19:40,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-08 00:19:40,388 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 00:19:40,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:40,458 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2022-04-08 00:19:40,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-08 00:19:40,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2022-04-08 00:19:40,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 00:19:40,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 00:19:40,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2022-04-08 00:19:40,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 00:19:40,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2022-04-08 00:19:40,463 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 48 transitions. [2022-04-08 00:19:40,510 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 00:19:40,511 INFO L225 Difference]: With dead ends: 51 [2022-04-08 00:19:40,511 INFO L226 Difference]: Without dead ends: 33 [2022-04-08 00:19:40,511 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-08 00:19:40,512 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-08 00:19:40,513 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-08 00:19:40,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-04-08 00:19:40,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-04-08 00:19:40,521 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 00:19:40,522 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 00:19:40,522 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 00:19:40,522 INFO L87 Difference]: Start difference. First operand 33 states. Second operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 00:19:40,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:40,524 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-04-08 00:19:40,524 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-04-08 00:19:40,524 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 00:19:40,525 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 00:19:40,525 INFO L74 IsIncluded]: Start isIncluded. First operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Second operand 33 states. [2022-04-08 00:19:40,525 INFO L87 Difference]: Start difference. First operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Second operand 33 states. [2022-04-08 00:19:40,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:40,527 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-04-08 00:19:40,527 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-04-08 00:19:40,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 00:19:40,527 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 00:19:40,527 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 00:19:40,527 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 00:19:40,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 00:19:40,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-04-08 00:19:40,529 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 27 [2022-04-08 00:19:40,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 00:19:40,529 INFO L478 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-04-08 00:19:40,529 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 00:19:40,530 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-04-08 00:19:40,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-04-08 00:19:40,530 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 00:19:40,530 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 00:19:40,562 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 00:19:40,759 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 00:19:40,760 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 00:19:40,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 00:19:40,760 INFO L85 PathProgramCache]: Analyzing trace with hash -44144948, now seen corresponding path program 1 times [2022-04-08 00:19:40,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 00:19:40,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394604640] [2022-04-08 00:19:40,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 00:19:40,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 00:19:40,774 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 00:19:40,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45822615] [2022-04-08 00:19:40,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 00:19:40,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 00:19:40,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 00:19:40,783 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 00:19:40,784 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 00:19:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 00:19:40,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-08 00:19:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 00:19:40,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 00:19:41,059 INFO L272 TraceCheckUtils]: 0: Hoare triple {1024#true} [87] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:41,060 INFO L290 TraceCheckUtils]: 1: Hoare triple {1024#true} [89] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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) (= (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{#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[#NULL.offset, #NULL.base] {1024#true} is VALID [2022-04-08 00:19:41,060 INFO L290 TraceCheckUtils]: 2: Hoare triple {1024#true} [92] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:41,060 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1024#true} {1024#true} [121] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:41,060 INFO L272 TraceCheckUtils]: 4: Hoare triple {1024#true} [88] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:41,060 INFO L290 TraceCheckUtils]: 5: Hoare triple {1024#true} [91] mainENTRY-->L29: Formula: (= v_main_~A~0_2 |v_main_#t~nondet1_2|) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_2, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_3, main_~r~0=v_main_~r~0_2} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {1024#true} is VALID [2022-04-08 00:19:41,061 INFO L272 TraceCheckUtils]: 6: Hoare triple {1024#true} [93] L29-->assume_abort_if_notENTRY: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {1024#true} is VALID [2022-04-08 00:19:41,061 INFO L290 TraceCheckUtils]: 7: Hoare triple {1024#true} [95] assume_abort_if_notENTRY-->L16: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {1024#true} is VALID [2022-04-08 00:19:41,061 INFO L290 TraceCheckUtils]: 8: Hoare triple {1024#true} [100] L16-->L16-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:41,061 INFO L290 TraceCheckUtils]: 9: Hoare triple {1024#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:41,061 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1024#true} {1024#true} [122] assume_abort_if_notEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {1024#true} is VALID [2022-04-08 00:19:41,061 INFO L290 TraceCheckUtils]: 11: Hoare triple {1024#true} [94] L29-1-->L34-2: Formula: (and (= v_main_~B~0_4 v_main_~b~0_6) (= v_main_~q~0_5 0) (= v_main_~B~0_4 1) (= v_main_~A~0_6 v_main_~r~0_3)) InVars {main_~A~0=v_main_~A~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~B~0=v_main_~B~0_4, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_6, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_~B~0, main_~b~0, main_~r~0] {1024#true} is VALID [2022-04-08 00:19:41,061 INFO L290 TraceCheckUtils]: 12: Hoare triple {1024#true} [98] L34-2-->L35: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:41,062 INFO L290 TraceCheckUtils]: 13: Hoare triple {1024#true} [105] L35-->L34-2: Formula: (and (<= (mod v_main_~b~0_12 4294967296) (mod v_main_~r~0_9 4294967296)) (= (* 2 v_main_~b~0_12) v_main_~b~0_11)) InVars {main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} OutVars{main_~b~0=v_main_~b~0_11, main_~r~0=v_main_~r~0_9} AuxVars[] AssignedVars[main_~b~0] {1024#true} is VALID [2022-04-08 00:19:41,062 INFO L290 TraceCheckUtils]: 14: Hoare triple {1024#true} [98] L34-2-->L35: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:41,062 INFO L290 TraceCheckUtils]: 15: Hoare triple {1024#true} [104] L35-->L43-2: Formula: (not (<= (mod v_main_~b~0_10 4294967296) (mod v_main_~r~0_8 4294967296))) InVars {main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_8} OutVars{main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_8} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:41,062 INFO L290 TraceCheckUtils]: 16: Hoare triple {1024#true} [103] L43-2-->L39: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:41,062 INFO L272 TraceCheckUtils]: 17: Hoare triple {1024#true} [108] L39-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_9 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_9, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {1024#true} is VALID [2022-04-08 00:19:41,076 INFO L290 TraceCheckUtils]: 18: Hoare triple {1024#true} [110] __VERIFIER_assertENTRY-->L19: 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] {1083#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-08 00:19:41,076 INFO L290 TraceCheckUtils]: 19: Hoare triple {1083#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} [115] L19-->L19-2: 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[] {1087#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 00:19:41,076 INFO L290 TraceCheckUtils]: 20: Hoare triple {1087#(not (= |__VERIFIER_assert_#in~cond| 0))} [120] L19-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1087#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 00:19:41,077 INFO L284 TraceCheckUtils]: 21: Hoare quadruple {1087#(not (= |__VERIFIER_assert_#in~cond| 0))} {1024#true} [124] __VERIFIER_assertEXIT-->L39-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_9 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_9, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {1094#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} is VALID [2022-04-08 00:19:41,078 INFO L290 TraceCheckUtils]: 22: Hoare triple {1094#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} [111] L39-1-->L38-1: Formula: (= (mod v_main_~B~0_1 4294967296) (mod v_main_~b~0_2 4294967296)) InVars {main_~b~0=v_main_~b~0_2, main_~B~0=v_main_~B~0_1} OutVars{main_~b~0=v_main_~b~0_2, main_~B~0=v_main_~B~0_1} AuxVars[] AssignedVars[] {1094#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} is VALID [2022-04-08 00:19:41,078 INFO L272 TraceCheckUtils]: 23: Hoare triple {1094#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} [107] L38-1-->__VERIFIER_assertENTRY: Formula: (= (ite (= (mod (+ v_main_~r~0_11 (* v_main_~q~0_10 v_main_~b~0_14)) 4294967296) (mod v_main_~A~0_10 4294967296)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~q~0=v_main_~q~0_10, main_~A~0=v_main_~A~0_10, main_~b~0=v_main_~b~0_14, main_~r~0=v_main_~r~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {1101#(= |__VERIFIER_assert_#in~cond| 1)} is VALID [2022-04-08 00:19:41,079 INFO L290 TraceCheckUtils]: 24: Hoare triple {1101#(= |__VERIFIER_assert_#in~cond| 1)} [110] __VERIFIER_assertENTRY-->L19: 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] {1105#(= __VERIFIER_assert_~cond 1)} is VALID [2022-04-08 00:19:41,079 INFO L290 TraceCheckUtils]: 25: Hoare triple {1105#(= __VERIFIER_assert_~cond 1)} [114] L19-->L20: 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[] {1025#false} is VALID [2022-04-08 00:19:41,080 INFO L290 TraceCheckUtils]: 26: Hoare triple {1025#false} [118] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1025#false} is VALID [2022-04-08 00:19:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-08 00:19:41,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 00:19:42,022 INFO L290 TraceCheckUtils]: 26: Hoare triple {1025#false} [118] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1025#false} is VALID [2022-04-08 00:19:42,022 INFO L290 TraceCheckUtils]: 25: Hoare triple {1115#(not (= __VERIFIER_assert_~cond 0))} [114] L19-->L20: 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[] {1025#false} is VALID [2022-04-08 00:19:42,023 INFO L290 TraceCheckUtils]: 24: Hoare triple {1087#(not (= |__VERIFIER_assert_#in~cond| 0))} [110] __VERIFIER_assertENTRY-->L19: 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] {1115#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 00:19:42,025 INFO L272 TraceCheckUtils]: 23: Hoare triple {1094#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} [107] L38-1-->__VERIFIER_assertENTRY: Formula: (= (ite (= (mod (+ v_main_~r~0_11 (* v_main_~q~0_10 v_main_~b~0_14)) 4294967296) (mod v_main_~A~0_10 4294967296)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~q~0=v_main_~q~0_10, main_~A~0=v_main_~A~0_10, main_~b~0=v_main_~b~0_14, main_~r~0=v_main_~r~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {1087#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 00:19:42,025 INFO L290 TraceCheckUtils]: 22: Hoare triple {1094#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} [111] L39-1-->L38-1: Formula: (= (mod v_main_~B~0_1 4294967296) (mod v_main_~b~0_2 4294967296)) InVars {main_~b~0=v_main_~b~0_2, main_~B~0=v_main_~B~0_1} OutVars{main_~b~0=v_main_~b~0_2, main_~B~0=v_main_~B~0_1} AuxVars[] AssignedVars[] {1094#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} is VALID [2022-04-08 00:19:42,026 INFO L284 TraceCheckUtils]: 21: Hoare quadruple {1087#(not (= |__VERIFIER_assert_#in~cond| 0))} {1024#true} [124] __VERIFIER_assertEXIT-->L39-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_9 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_9, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {1094#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} is VALID [2022-04-08 00:19:42,026 INFO L290 TraceCheckUtils]: 20: Hoare triple {1087#(not (= |__VERIFIER_assert_#in~cond| 0))} [120] L19-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1087#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 00:19:42,026 INFO L290 TraceCheckUtils]: 19: Hoare triple {1137#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} [115] L19-->L19-2: 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[] {1087#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 00:19:42,027 INFO L290 TraceCheckUtils]: 18: Hoare triple {1024#true} [110] __VERIFIER_assertENTRY-->L19: 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] {1137#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 00:19:42,027 INFO L272 TraceCheckUtils]: 17: Hoare triple {1024#true} [108] L39-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_9 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_9, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {1024#true} is VALID [2022-04-08 00:19:42,027 INFO L290 TraceCheckUtils]: 16: Hoare triple {1024#true} [103] L43-2-->L39: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:42,027 INFO L290 TraceCheckUtils]: 15: Hoare triple {1024#true} [104] L35-->L43-2: Formula: (not (<= (mod v_main_~b~0_10 4294967296) (mod v_main_~r~0_8 4294967296))) InVars {main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_8} OutVars{main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_8} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:42,027 INFO L290 TraceCheckUtils]: 14: Hoare triple {1024#true} [98] L34-2-->L35: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:42,027 INFO L290 TraceCheckUtils]: 13: Hoare triple {1024#true} [105] L35-->L34-2: Formula: (and (<= (mod v_main_~b~0_12 4294967296) (mod v_main_~r~0_9 4294967296)) (= (* 2 v_main_~b~0_12) v_main_~b~0_11)) InVars {main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} OutVars{main_~b~0=v_main_~b~0_11, main_~r~0=v_main_~r~0_9} AuxVars[] AssignedVars[main_~b~0] {1024#true} is VALID [2022-04-08 00:19:42,028 INFO L290 TraceCheckUtils]: 12: Hoare triple {1024#true} [98] L34-2-->L35: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:42,028 INFO L290 TraceCheckUtils]: 11: Hoare triple {1024#true} [94] L29-1-->L34-2: Formula: (and (= v_main_~B~0_4 v_main_~b~0_6) (= v_main_~q~0_5 0) (= v_main_~B~0_4 1) (= v_main_~A~0_6 v_main_~r~0_3)) InVars {main_~A~0=v_main_~A~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~B~0=v_main_~B~0_4, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_6, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_~B~0, main_~b~0, main_~r~0] {1024#true} is VALID [2022-04-08 00:19:42,028 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1024#true} {1024#true} [122] assume_abort_if_notEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {1024#true} is VALID [2022-04-08 00:19:42,028 INFO L290 TraceCheckUtils]: 9: Hoare triple {1024#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:42,028 INFO L290 TraceCheckUtils]: 8: Hoare triple {1024#true} [100] L16-->L16-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:42,028 INFO L290 TraceCheckUtils]: 7: Hoare triple {1024#true} [95] assume_abort_if_notENTRY-->L16: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {1024#true} is VALID [2022-04-08 00:19:42,028 INFO L272 TraceCheckUtils]: 6: Hoare triple {1024#true} [93] L29-->assume_abort_if_notENTRY: Formula: (= (ite (<= (mod v_main_~A~0_8 4294967296) 1) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~A~0=v_main_~A~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~A~0, assume_abort_if_not_#in~cond] {1024#true} is VALID [2022-04-08 00:19:42,028 INFO L290 TraceCheckUtils]: 5: Hoare triple {1024#true} [91] mainENTRY-->L29: Formula: (= v_main_~A~0_2 |v_main_#t~nondet1_2|) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_2, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_3, main_~r~0=v_main_~r~0_2} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {1024#true} is VALID [2022-04-08 00:19:42,029 INFO L272 TraceCheckUtils]: 4: Hoare triple {1024#true} [88] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:42,029 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1024#true} {1024#true} [121] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:42,029 INFO L290 TraceCheckUtils]: 2: Hoare triple {1024#true} [92] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:42,029 INFO L290 TraceCheckUtils]: 1: Hoare triple {1024#true} [89] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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) (= (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{#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[#NULL.offset, #NULL.base] {1024#true} is VALID [2022-04-08 00:19:42,029 INFO L272 TraceCheckUtils]: 0: Hoare triple {1024#true} [87] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1024#true} is VALID [2022-04-08 00:19:42,029 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-08 00:19:42,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 00:19:42,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394604640] [2022-04-08 00:19:42,030 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-08 00:19:42,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45822615] [2022-04-08 00:19:42,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45822615] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 00:19:42,030 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-08 00:19:42,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2022-04-08 00:19:42,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195685827] [2022-04-08 00:19:42,030 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-08 00:19:42,031 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-04-08 00:19:42,031 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 00:19:42,032 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 00:19:42,059 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 00:19:42,059 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-08 00:19:42,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-08 00:19:42,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-08 00:19:42,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-04-08 00:19:42,060 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 00:19:42,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:42,333 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2022-04-08 00:19:42,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-08 00:19:42,334 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-04-08 00:19:42,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 00:19:42,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 00:19:42,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2022-04-08 00:19:42,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 00:19:42,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2022-04-08 00:19:42,337 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 35 transitions. [2022-04-08 00:19:42,364 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 00:19:42,365 INFO L225 Difference]: With dead ends: 39 [2022-04-08 00:19:42,365 INFO L226 Difference]: Without dead ends: 32 [2022-04-08 00:19:42,365 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-04-08 00:19:42,366 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 12 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 00:19:42,366 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 94 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 00:19:42,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-04-08 00:19:42,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-04-08 00:19:42,375 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 00:19:42,376 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand has 32 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 00:19:42,376 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand has 32 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 00:19:42,376 INFO L87 Difference]: Start difference. First operand 32 states. Second operand has 32 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 00:19:42,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:42,377 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-04-08 00:19:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2022-04-08 00:19:42,378 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 00:19:42,378 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 00:19:42,378 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Second operand 32 states. [2022-04-08 00:19:42,378 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Second operand 32 states. [2022-04-08 00:19:42,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 00:19:42,380 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-04-08 00:19:42,380 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2022-04-08 00:19:42,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 00:19:42,380 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 00:19:42,380 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 00:19:42,380 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 00:19:42,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 00:19:42,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2022-04-08 00:19:42,382 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 27 [2022-04-08 00:19:42,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 00:19:42,382 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2022-04-08 00:19:42,382 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 00:19:42,382 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2022-04-08 00:19:42,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-08 00:19:42,383 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 00:19:42,383 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 00:19:42,407 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 00:19:42,599 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 00:19:42,600 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 00:19:42,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 00:19:42,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1664896543, now seen corresponding path program 1 times [2022-04-08 00:19:42,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 00:19:42,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084990607] [2022-04-08 00:19:42,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 00:19:42,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 00:19:42,614 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-08 00:19:42,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343540336] [2022-04-08 00:19:42,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 00:19:42,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 00:19:42,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 00:19:42,621 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-08 00:19:42,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process