/usr/bin/java -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/loops-crafted-1/Mono5_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 08:43:38,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 08:43:39,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 08:43:39,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 08:43:39,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 08:43:39,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 08:43:39,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 08:43:39,075 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-20 08:43:39,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 08:43:39,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 08:43:39,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 08:43:39,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 08:43:39,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 08:43:39,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 08:43:39,098 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 08:43:39,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 08:43:39,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 08:43:39,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 08:43:39,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 08:43:39,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 08:43:39,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 08:43:39,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 08:43:39,099 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 08:43:39,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 08:43:39,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 08:43:39,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 08:43:39,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 08:43:39,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 08:43:39,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 08:43:39,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 08:43:39,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 08:43:39,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 08:43:39,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 08:43:39,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 08:43:39,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-20 08:43:39,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-20 08:43:39,101 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 08:43:39,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 08:43:39,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 08:43:39,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 08:43:39,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 08:43:39,304 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 08:43:39,305 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 08:43:39,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/Mono5_1.c [2022-03-20 08:43:39,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/712278c0a/33ae21c8f9544dfda12fc8618eb2e915/FLAG655155f1a [2022-03-20 08:43:39,717 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 08:43:39,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/Mono5_1.c [2022-03-20 08:43:39,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/712278c0a/33ae21c8f9544dfda12fc8618eb2e915/FLAG655155f1a [2022-03-20 08:43:39,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/712278c0a/33ae21c8f9544dfda12fc8618eb2e915 [2022-03-20 08:43:39,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 08:43:39,740 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 08:43:39,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 08:43:39,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 08:43:39,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 08:43:39,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 08:43:39" (1/1) ... [2022-03-20 08:43:39,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df41e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:43:39, skipping insertion in model container [2022-03-20 08:43:39,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 08:43:39" (1/1) ... [2022-03-20 08:43:39,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 08:43:39,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 08:43:39,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/Mono5_1.c[311,324] [2022-03-20 08:43:39,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 08:43:39,921 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 08:43:39,930 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/Mono5_1.c[311,324] [2022-03-20 08:43:39,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 08:43:39,941 INFO L208 MainTranslator]: Completed translation [2022-03-20 08:43:39,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:43:39 WrapperNode [2022-03-20 08:43:39,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 08:43:39,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 08:43:39,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 08:43:39,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 08:43:39,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:43:39" (1/1) ... [2022-03-20 08:43:39,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:43:39" (1/1) ... [2022-03-20 08:43:39,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:43:39" (1/1) ... [2022-03-20 08:43:39,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:43:39" (1/1) ... [2022-03-20 08:43:39,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:43:39" (1/1) ... [2022-03-20 08:43:39,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:43:39" (1/1) ... [2022-03-20 08:43:39,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:43:39" (1/1) ... [2022-03-20 08:43:39,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 08:43:39,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 08:43:39,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 08:43:39,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 08:43:39,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:43:39" (1/1) ... [2022-03-20 08:43:39,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 08:43:39,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 08:43:40,003 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) [2022-03-20 08:43:40,014 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 [2022-03-20 08:43:40,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 08:43:40,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 08:43:40,035 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 08:43:40,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 08:43:40,035 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 08:43:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 08:43:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 08:43:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 08:43:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 08:43:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 08:43:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 08:43:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 08:43:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 08:43:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 08:43:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 08:43:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 08:43:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 08:43:40,083 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 08:43:40,084 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 08:43:40,170 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 08:43:40,174 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 08:43:40,174 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 08:43:40,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 08:43:40 BoogieIcfgContainer [2022-03-20 08:43:40,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 08:43:40,175 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 08:43:40,175 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 08:43:40,176 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 08:43:40,178 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 08:43:40" (1/1) ... [2022-03-20 08:43:40,180 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-03-20 08:43:40,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 08:43:40 BasicIcfg [2022-03-20 08:43:40,189 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 08:43:40,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 08:43:40,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 08:43:40,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 08:43:40,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 08:43:39" (1/4) ... [2022-03-20 08:43:40,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@200383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 08:43:40, skipping insertion in model container [2022-03-20 08:43:40,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:43:39" (2/4) ... [2022-03-20 08:43:40,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@200383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 08:43:40, skipping insertion in model container [2022-03-20 08:43:40,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 08:43:40" (3/4) ... [2022-03-20 08:43:40,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@200383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 08:43:40, skipping insertion in model container [2022-03-20 08:43:40,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 08:43:40" (4/4) ... [2022-03-20 08:43:40,194 INFO L111 eAbstractionObserver]: Analyzing ICFG Mono5_1.cqvasr [2022-03-20 08:43:40,213 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 08:43:40,213 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 08:43:40,251 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 08:43:40,255 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 [2022-03-20 08:43:40,256 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 08:43:40,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 08:43:40,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-20 08:43:40,268 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 08:43:40,269 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 08:43:40,269 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 08:43:40,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 08:43:40,273 INFO L85 PathProgramCache]: Analyzing trace with hash -154368955, now seen corresponding path program 1 times [2022-03-20 08:43:40,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 08:43:40,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111670730] [2022-03-20 08:43:40,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 08:43:40,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 08:43:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 08:43:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 08:43:40,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 08:43:40,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111670730] [2022-03-20 08:43:40,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111670730] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 08:43:40,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 08:43:40,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-20 08:43:40,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095402046] [2022-03-20 08:43:40,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 08:43:40,435 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 08:43:40,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 08:43:40,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 08:43:40,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 08:43:40,456 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:40,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 08:43:40,492 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-03-20 08:43:40,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 08:43:40,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-03-20 08:43:40,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 08:43:40,497 INFO L225 Difference]: With dead ends: 31 [2022-03-20 08:43:40,498 INFO L226 Difference]: Without dead ends: 14 [2022-03-20 08:43:40,500 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 08:43:40,503 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 08:43:40,504 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 08:43:40,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-03-20 08:43:40,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-03-20 08:43:40,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:40,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-03-20 08:43:40,530 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-03-20 08:43:40,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 08:43:40,530 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-03-20 08:43:40,531 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:40,531 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-03-20 08:43:40,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-20 08:43:40,532 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 08:43:40,532 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 08:43:40,532 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 08:43:40,533 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 08:43:40,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 08:43:40,535 INFO L85 PathProgramCache]: Analyzing trace with hash -153445434, now seen corresponding path program 1 times [2022-03-20 08:43:40,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 08:43:40,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501842516] [2022-03-20 08:43:40,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 08:43:40,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 08:43:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 08:43:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:40,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 08:43:40,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 08:43:40,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501842516] [2022-03-20 08:43:40,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501842516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 08:43:40,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 08:43:40,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 08:43:40,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151719820] [2022-03-20 08:43:40,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 08:43:40,678 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 08:43:40,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 08:43:40,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 08:43:40,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 08:43:40,679 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:40,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 08:43:40,750 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-03-20 08:43:40,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 08:43:40,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-03-20 08:43:40,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 08:43:40,751 INFO L225 Difference]: With dead ends: 22 [2022-03-20 08:43:40,751 INFO L226 Difference]: Without dead ends: 17 [2022-03-20 08:43:40,751 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 08:43:40,752 INFO L913 BasicCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 08:43:40,752 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 31 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 08:43:40,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-03-20 08:43:40,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-03-20 08:43:40,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:40,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-03-20 08:43:40,756 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2022-03-20 08:43:40,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 08:43:40,756 INFO L478 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-03-20 08:43:40,756 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:40,757 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-03-20 08:43:40,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-20 08:43:40,757 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 08:43:40,757 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 08:43:40,757 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 08:43:40,757 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 08:43:40,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 08:43:40,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1203653974, now seen corresponding path program 1 times [2022-03-20 08:43:40,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 08:43:40,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575803825] [2022-03-20 08:43:40,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 08:43:40,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 08:43:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:40,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 08:43:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:40,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 08:43:40,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 08:43:40,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575803825] [2022-03-20 08:43:40,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575803825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 08:43:40,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 08:43:40,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 08:43:40,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149655579] [2022-03-20 08:43:40,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 08:43:40,823 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 08:43:40,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 08:43:40,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 08:43:40,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 08:43:40,824 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:40,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 08:43:40,845 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-03-20 08:43:40,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 08:43:40,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-03-20 08:43:40,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 08:43:40,846 INFO L225 Difference]: With dead ends: 28 [2022-03-20 08:43:40,846 INFO L226 Difference]: Without dead ends: 20 [2022-03-20 08:43:40,846 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 08:43:40,847 INFO L913 BasicCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 08:43:40,848 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 19 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 08:43:40,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-03-20 08:43:40,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2022-03-20 08:43:40,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:40,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-03-20 08:43:40,851 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 14 [2022-03-20 08:43:40,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 08:43:40,851 INFO L478 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-03-20 08:43:40,851 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:40,852 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-03-20 08:43:40,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-03-20 08:43:40,852 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 08:43:40,852 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 08:43:40,852 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 08:43:40,852 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 08:43:40,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 08:43:40,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1828446949, now seen corresponding path program 1 times [2022-03-20 08:43:40,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 08:43:40,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529765014] [2022-03-20 08:43:40,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 08:43:40,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 08:43:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:40,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 08:43:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:40,909 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 08:43:40,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 08:43:40,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529765014] [2022-03-20 08:43:40,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529765014] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 08:43:40,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773015240] [2022-03-20 08:43:40,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 08:43:40,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 08:43:40,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 08:43:40,924 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) [2022-03-20 08:43:40,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 08:43:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:40,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-20 08:43:40,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 08:43:41,043 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 08:43:41,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 08:43:41,132 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 08:43:41,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773015240] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 08:43:41,132 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 08:43:41,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 11 [2022-03-20 08:43:41,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256067717] [2022-03-20 08:43:41,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 08:43:41,134 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-20 08:43:41,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 08:43:41,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-20 08:43:41,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-03-20 08:43:41,138 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 9 states have internal predecessors, (30), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:41,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 08:43:41,310 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2022-03-20 08:43:41,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-20 08:43:41,311 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 9 states have internal predecessors, (30), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-03-20 08:43:41,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 08:43:41,312 INFO L225 Difference]: With dead ends: 45 [2022-03-20 08:43:41,312 INFO L226 Difference]: Without dead ends: 32 [2022-03-20 08:43:41,313 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2022-03-20 08:43:41,319 INFO L913 BasicCegarLoop]: 13 mSDtfsCounter, 46 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 08:43:41,320 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 55 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 08:43:41,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-03-20 08:43:41,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2022-03-20 08:43:41,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:41,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2022-03-20 08:43:41,333 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 17 [2022-03-20 08:43:41,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 08:43:41,333 INFO L478 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-03-20 08:43:41,333 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 9 states have internal predecessors, (30), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:41,333 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-03-20 08:43:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-20 08:43:41,334 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 08:43:41,335 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 08:43:41,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 08:43:41,543 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 08:43:41,544 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 08:43:41,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 08:43:41,544 INFO L85 PathProgramCache]: Analyzing trace with hash -976700890, now seen corresponding path program 2 times [2022-03-20 08:43:41,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 08:43:41,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439391148] [2022-03-20 08:43:41,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 08:43:41,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 08:43:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:41,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 08:43:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:41,642 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 29 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-20 08:43:41,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 08:43:41,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439391148] [2022-03-20 08:43:41,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439391148] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 08:43:41,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503691979] [2022-03-20 08:43:41,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 08:43:41,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 08:43:41,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 08:43:41,648 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) [2022-03-20 08:43:41,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 08:43:41,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 08:43:41,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 08:43:41,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-20 08:43:41,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 08:43:41,778 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-20 08:43:41,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 08:43:41,918 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-20 08:43:41,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503691979] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 08:43:41,919 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 08:43:41,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 18 [2022-03-20 08:43:41,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090973412] [2022-03-20 08:43:41,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 08:43:41,919 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-20 08:43:41,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 08:43:41,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-20 08:43:41,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-03-20 08:43:41,920 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 16 states have internal predecessors, (53), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:42,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 08:43:42,372 INFO L93 Difference]: Finished difference Result 78 states and 100 transitions. [2022-03-20 08:43:42,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-20 08:43:42,373 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 16 states have internal predecessors, (53), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-03-20 08:43:42,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 08:43:42,373 INFO L225 Difference]: With dead ends: 78 [2022-03-20 08:43:42,373 INFO L226 Difference]: Without dead ends: 53 [2022-03-20 08:43:42,375 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=232, Invalid=824, Unknown=0, NotChecked=0, Total=1056 [2022-03-20 08:43:42,375 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 124 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 08:43:42,375 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 74 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 08:43:42,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-03-20 08:43:42,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2022-03-20 08:43:42,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 47 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:42,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2022-03-20 08:43:42,381 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 29 [2022-03-20 08:43:42,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 08:43:42,381 INFO L478 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2022-03-20 08:43:42,381 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 16 states have internal predecessors, (53), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:42,381 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2022-03-20 08:43:42,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 08:43:42,382 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 08:43:42,382 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 10, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 08:43:42,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 08:43:42,595 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 08:43:42,595 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 08:43:42,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 08:43:42,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1868071817, now seen corresponding path program 3 times [2022-03-20 08:43:42,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 08:43:42,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057376469] [2022-03-20 08:43:42,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 08:43:42,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 08:43:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 08:43:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 106 proven. 15 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-03-20 08:43:42,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 08:43:42,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057376469] [2022-03-20 08:43:42,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057376469] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 08:43:42,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594222099] [2022-03-20 08:43:42,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-20 08:43:42,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 08:43:42,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 08:43:42,711 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) [2022-03-20 08:43:42,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 08:43:42,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-03-20 08:43:42,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 08:43:42,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-20 08:43:42,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 08:43:42,944 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 106 proven. 15 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-03-20 08:43:42,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 08:43:43,117 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 106 proven. 15 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-03-20 08:43:43,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594222099] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 08:43:43,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 08:43:43,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2022-03-20 08:43:43,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358613829] [2022-03-20 08:43:43,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 08:43:43,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-20 08:43:43,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 08:43:43,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-20 08:43:43,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2022-03-20 08:43:43,119 INFO L87 Difference]: Start difference. First operand 52 states and 63 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:43,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 08:43:43,577 INFO L93 Difference]: Finished difference Result 112 states and 138 transitions. [2022-03-20 08:43:43,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-20 08:43:43,577 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-20 08:43:43,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 08:43:43,578 INFO L225 Difference]: With dead ends: 112 [2022-03-20 08:43:43,578 INFO L226 Difference]: Without dead ends: 77 [2022-03-20 08:43:43,579 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=235, Invalid=577, Unknown=0, NotChecked=0, Total=812 [2022-03-20 08:43:43,579 INFO L913 BasicCegarLoop]: 12 mSDtfsCounter, 47 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 08:43:43,580 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 44 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 08:43:43,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-03-20 08:43:43,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 67. [2022-03-20 08:43:43,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 62 states have internal predecessors, (74), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:43,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 78 transitions. [2022-03-20 08:43:43,587 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 78 transitions. Word has length 50 [2022-03-20 08:43:43,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 08:43:43,587 INFO L478 AbstractCegarLoop]: Abstraction has 67 states and 78 transitions. [2022-03-20 08:43:43,588 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:43,588 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 78 transitions. [2022-03-20 08:43:43,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 08:43:43,616 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 08:43:43,616 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 10, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 08:43:43,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-20 08:43:43,825 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 08:43:43,825 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 08:43:43,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 08:43:43,826 INFO L85 PathProgramCache]: Analyzing trace with hash -31358138, now seen corresponding path program 4 times [2022-03-20 08:43:43,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 08:43:43,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933113146] [2022-03-20 08:43:43,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 08:43:43,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 08:43:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:43,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 08:43:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:43,988 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 251 proven. 100 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-03-20 08:43:43,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 08:43:43,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933113146] [2022-03-20 08:43:43,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933113146] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 08:43:43,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061045902] [2022-03-20 08:43:43,988 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-20 08:43:43,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 08:43:43,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 08:43:43,989 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) [2022-03-20 08:43:43,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 08:43:44,025 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-20 08:43:44,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 08:43:44,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-20 08:43:44,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 08:43:44,251 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 377 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-20 08:43:44,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 08:43:44,621 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 377 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-20 08:43:44,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061045902] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 08:43:44,622 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 08:43:44,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 15] total 36 [2022-03-20 08:43:44,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560594638] [2022-03-20 08:43:44,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 08:43:44,622 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-03-20 08:43:44,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 08:43:44,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-03-20 08:43:44,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1062, Unknown=0, NotChecked=0, Total=1260 [2022-03-20 08:43:44,624 INFO L87 Difference]: Start difference. First operand 67 states and 78 transitions. Second operand has 36 states, 36 states have (on average 2.9722222222222223) internal successors, (107), 34 states have internal predecessors, (107), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:52,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 08:43:52,754 INFO L93 Difference]: Finished difference Result 156 states and 202 transitions. [2022-03-20 08:43:52,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-20 08:43:52,755 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.9722222222222223) internal successors, (107), 34 states have internal predecessors, (107), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 08:43:52,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 08:43:52,755 INFO L225 Difference]: With dead ends: 156 [2022-03-20 08:43:52,755 INFO L226 Difference]: Without dead ends: 107 [2022-03-20 08:43:52,757 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=916, Invalid=3776, Unknown=0, NotChecked=0, Total=4692 [2022-03-20 08:43:52,758 INFO L913 BasicCegarLoop]: 40 mSDtfsCounter, 441 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 1547 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-20 08:43:52,758 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 157 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1547 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-20 08:43:52,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-03-20 08:43:52,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2022-03-20 08:43:52,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 101 states have (on average 1.2376237623762376) internal successors, (125), 101 states have internal predecessors, (125), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:52,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 129 transitions. [2022-03-20 08:43:52,768 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 129 transitions. Word has length 65 [2022-03-20 08:43:52,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 08:43:52,768 INFO L478 AbstractCegarLoop]: Abstraction has 106 states and 129 transitions. [2022-03-20 08:43:52,769 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.9722222222222223) internal successors, (107), 34 states have internal predecessors, (107), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:43:52,769 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 129 transitions. [2022-03-20 08:43:52,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 08:43:52,770 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 08:43:52,770 INFO L499 BasicCegarLoop]: trace histogram [31, 31, 22, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 08:43:52,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-20 08:43:52,983 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 08:43:52,983 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 08:43:52,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 08:43:52,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1862805289, now seen corresponding path program 5 times [2022-03-20 08:43:52,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 08:43:52,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871616086] [2022-03-20 08:43:52,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 08:43:52,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 08:43:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:53,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 08:43:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:43:53,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 628 proven. 126 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2022-03-20 08:43:53,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 08:43:53,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871616086] [2022-03-20 08:43:53,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871616086] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 08:43:53,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016900882] [2022-03-20 08:43:53,217 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-20 08:43:53,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 08:43:53,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 08:43:53,220 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) [2022-03-20 08:43:53,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-20 08:44:07,204 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-03-20 08:44:07,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 08:44:07,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-20 08:44:07,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 08:44:07,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 1300 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-03-20 08:44:07,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 08:44:08,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 1300 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-03-20 08:44:08,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016900882] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 08:44:08,953 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 08:44:08,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 27, 27] total 61 [2022-03-20 08:44:08,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990528360] [2022-03-20 08:44:08,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 08:44:08,954 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-03-20 08:44:08,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 08:44:08,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-03-20 08:44:08,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=657, Invalid=3003, Unknown=0, NotChecked=0, Total=3660 [2022-03-20 08:44:08,956 INFO L87 Difference]: Start difference. First operand 106 states and 129 transitions. Second operand has 61 states, 61 states have (on average 2.9836065573770494) internal successors, (182), 59 states have internal predecessors, (182), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:45:25,357 WARN L232 SmtUtils]: Spent 39.83s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 08:45:27,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 08:46:23,581 WARN L232 SmtUtils]: Spent 33.63s on a formula simplification that was a NOOP. DAG size: 118 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 08:47:23,194 WARN L232 SmtUtils]: Spent 27.33s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 08:47:25,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 08:48:12,494 WARN L232 SmtUtils]: Spent 20.76s on a formula simplification that was a NOOP. DAG size: 108 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 08:48:50,232 WARN L232 SmtUtils]: Spent 20.33s on a formula simplification that was a NOOP. DAG size: 103 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 08:49:20,485 WARN L232 SmtUtils]: Spent 15.94s on a formula simplification that was a NOOP. DAG size: 98 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 08:49:44,852 WARN L232 SmtUtils]: Spent 13.32s on a formula simplification that was a NOOP. DAG size: 93 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 08:50:08,822 WARN L232 SmtUtils]: Spent 15.41s on a formula simplification that was a NOOP. DAG size: 88 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 08:50:24,898 WARN L232 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 83 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 08:50:37,309 WARN L232 SmtUtils]: Spent 6.83s on a formula simplification that was a NOOP. DAG size: 78 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 08:51:05,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 08:51:05,228 INFO L93 Difference]: Finished difference Result 279 states and 373 transitions. [2022-03-20 08:51:05,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-20 08:51:05,229 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 2.9836065573770494) internal successors, (182), 59 states have internal predecessors, (182), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-20 08:51:05,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 08:51:05,229 INFO L225 Difference]: With dead ends: 279 [2022-03-20 08:51:05,229 INFO L226 Difference]: Without dead ends: 182 [2022-03-20 08:51:05,233 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 162 SyntacticMatches, 2 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1721 ImplicationChecksByTransitivity, 407.1s TimeCoverageRelationStatistics Valid=2953, Invalid=11076, Unknown=13, NotChecked=0, Total=14042 [2022-03-20 08:51:05,234 INFO L913 BasicCegarLoop]: 76 mSDtfsCounter, 1302 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 3517 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 3653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 3517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-03-20 08:51:05,234 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1302 Valid, 213 Invalid, 3653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 3517 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2022-03-20 08:51:05,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-03-20 08:51:05,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 181. [2022-03-20 08:51:05,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.2727272727272727) internal successors, (224), 176 states have internal predecessors, (224), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:51:05,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 228 transitions. [2022-03-20 08:51:05,248 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 228 transitions. Word has length 104 [2022-03-20 08:51:05,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 08:51:05,248 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 228 transitions. [2022-03-20 08:51:05,248 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 2.9836065573770494) internal successors, (182), 59 states have internal predecessors, (182), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:51:05,248 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 228 transitions. [2022-03-20 08:51:05,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-03-20 08:51:05,250 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 08:51:05,250 INFO L499 BasicCegarLoop]: trace histogram [56, 56, 46, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 08:51:05,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-20 08:51:05,455 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 08:51:05,456 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 08:51:05,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 08:51:05,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1126581850, now seen corresponding path program 6 times [2022-03-20 08:51:05,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 08:51:05,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588693903] [2022-03-20 08:51:05,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 08:51:05,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 08:51:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:51:05,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 08:51:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:51:05,708 INFO L134 CoverageAnalysis]: Checked inductivity of 4676 backedges. 1461 proven. 155 refuted. 0 times theorem prover too weak. 3060 trivial. 0 not checked. [2022-03-20 08:51:05,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 08:51:05,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588693903] [2022-03-20 08:51:05,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588693903] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 08:51:05,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914905913] [2022-03-20 08:51:05,709 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-20 08:51:05,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 08:51:05,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 08:51:05,710 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 08:51:05,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-20 08:52:04,924 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2022-03-20 08:52:04,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 08:52:04,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-20 08:52:04,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 08:52:05,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4676 backedges. 2049 proven. 442 refuted. 0 times theorem prover too weak. 2185 trivial. 0 not checked. [2022-03-20 08:52:05,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 08:52:06,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4676 backedges. 2049 proven. 442 refuted. 0 times theorem prover too weak. 2185 trivial. 0 not checked. [2022-03-20 08:52:06,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914905913] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 08:52:06,095 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 08:52:06,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 20, 20] total 40 [2022-03-20 08:52:06,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508163386] [2022-03-20 08:52:06,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 08:52:06,096 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-03-20 08:52:06,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 08:52:06,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-03-20 08:52:06,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=430, Invalid=1130, Unknown=0, NotChecked=0, Total=1560 [2022-03-20 08:52:06,097 INFO L87 Difference]: Start difference. First operand 181 states and 228 transitions. Second operand has 40 states, 40 states have (on average 3.025) internal successors, (121), 39 states have internal predecessors, (121), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:52:45,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 08:52:45,460 INFO L93 Difference]: Finished difference Result 448 states and 567 transitions. [2022-03-20 08:52:45,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-20 08:52:45,461 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.025) internal successors, (121), 39 states have internal predecessors, (121), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2022-03-20 08:52:45,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 08:52:45,462 INFO L225 Difference]: With dead ends: 448 [2022-03-20 08:52:45,462 INFO L226 Difference]: Without dead ends: 305 [2022-03-20 08:52:45,463 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 334 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 39.5s TimeCoverageRelationStatistics Valid=1538, Invalid=4161, Unknown=1, NotChecked=0, Total=5700 [2022-03-20 08:52:45,464 INFO L913 BasicCegarLoop]: 12 mSDtfsCounter, 256 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-20 08:52:45,464 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 109 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-20 08:52:45,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-03-20 08:52:45,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 259. [2022-03-20 08:52:45,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 254 states have (on average 1.188976377952756) internal successors, (302), 254 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:52:45,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 306 transitions. [2022-03-20 08:52:45,480 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 306 transitions. Word has length 179 [2022-03-20 08:52:45,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 08:52:45,480 INFO L478 AbstractCegarLoop]: Abstraction has 259 states and 306 transitions. [2022-03-20 08:52:45,480 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.025) internal successors, (121), 39 states have internal predecessors, (121), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:52:45,480 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 306 transitions. [2022-03-20 08:52:45,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-20 08:52:45,482 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 08:52:45,483 INFO L499 BasicCegarLoop]: trace histogram [82, 82, 46, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 08:52:45,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-20 08:52:45,687 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 08:52:45,687 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 08:52:45,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 08:52:45,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1484851334, now seen corresponding path program 7 times [2022-03-20 08:52:45,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 08:52:45,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951406806] [2022-03-20 08:52:45,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 08:52:45,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 08:52:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:52:46,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 08:52:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:52:46,565 INFO L134 CoverageAnalysis]: Checked inductivity of 10045 backedges. 5023 proven. 1962 refuted. 0 times theorem prover too weak. 3060 trivial. 0 not checked. [2022-03-20 08:52:46,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 08:52:46,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951406806] [2022-03-20 08:52:46,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951406806] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 08:52:46,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080850582] [2022-03-20 08:52:46,565 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-20 08:52:46,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 08:52:46,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 08:52:46,567 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 08:52:46,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-20 08:52:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:52:46,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 97 conjunts are in the unsatisfiable core [2022-03-20 08:52:46,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 08:52:48,895 INFO L134 CoverageAnalysis]: Checked inductivity of 10045 backedges. 0 proven. 8083 refuted. 0 times theorem prover too weak. 1962 trivial. 0 not checked. [2022-03-20 08:52:48,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 08:52:53,322 INFO L134 CoverageAnalysis]: Checked inductivity of 10045 backedges. 0 proven. 8083 refuted. 0 times theorem prover too weak. 1962 trivial. 0 not checked. [2022-03-20 08:52:53,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080850582] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 08:52:53,322 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 08:52:53,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 51, 51] total 136 [2022-03-20 08:52:53,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204386336] [2022-03-20 08:52:53,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 08:52:53,326 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 136 states [2022-03-20 08:52:53,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 08:52:53,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2022-03-20 08:52:53,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2514, Invalid=15846, Unknown=0, NotChecked=0, Total=18360 [2022-03-20 08:52:53,330 INFO L87 Difference]: Start difference. First operand 259 states and 306 transitions. Second operand has 136 states, 136 states have (on average 2.9926470588235294) internal successors, (407), 134 states have internal predecessors, (407), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 08:53:05,445 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967253 c_main_~z~0) 4294967296) 0)) (= |c_#NULL.base| |c_old(#NULL.base)|) (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967252 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967251 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod c_main_~z~0 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967254 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967250 c_main_~z~0) 4294967296) 0)) (= |c_#NULL.offset| |c_old(#NULL.offset)|) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:07,568 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967253 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967252 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967251 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod c_main_~z~0 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967254 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967250 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:09,579 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967253 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967252 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967251 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967254 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967250 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:11,589 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967253 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967252 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967251 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod c_main_~z~0 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967254 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:13,698 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967253 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967252 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967251 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967254 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:15,756 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967253 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967252 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod c_main_~z~0 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967254 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:17,948 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967253 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967252 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967254 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:20,040 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967253 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod c_main_~z~0 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967254 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:22,222 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967253 c_main_~z~0) 4294967296) 0)) (= |c_#NULL.base| |c_old(#NULL.base)|) (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod c_main_~z~0 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967254 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (= |c_#NULL.offset| |c_old(#NULL.offset)|) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:24,262 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967253 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967254 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:26,346 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod c_main_~z~0 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967254 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:28,516 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_#NULL.base| |c_old(#NULL.base)|) (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod c_main_~z~0 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967254 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (= |c_#NULL.offset| |c_old(#NULL.offset)|) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:30,558 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967254 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:32,624 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod c_main_~z~0 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:34,773 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_#NULL.base| |c_old(#NULL.base)|) (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod c_main_~z~0 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (= |c_#NULL.offset| |c_old(#NULL.offset)|) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:36,816 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967255) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:53:38,882 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967267 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967271 c_main_~z~0) 4294967296) 0)) (not (= 0 (mod (+ 4294967288 c_main_~z~0) 4294967296))) (not (= (mod (+ 4294967293 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967276 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967258 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967263 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967275 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967256 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967260 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967290 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967264 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967270 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967291 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967262 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967287 c_main_~z~0) 4294967296) 0)) (not (= (mod c_main_~z~0 4294967296) 0)) (not (= (mod (+ 4294967282 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967295 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967259 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967269 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967279 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967294 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967285 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967268 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967278 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967283 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967281 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967266 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967284 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967286 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967272 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967292 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967289 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967273 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ c_main_~z~0 4294967257) 4294967296) 0)) (not (= (mod (+ 4294967274 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967261 c_main_~z~0) 4294967296) 0)) (not (= (mod (+ 4294967265 c_main_~z~0) 4294967296) 0))) is different from false [2022-03-20 08:58:13,429 WARN L232 SmtUtils]: Spent 2.22m on a formula simplification that was a NOOP. DAG size: 213 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 08:58:14,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 08:58:16,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 08:58:18,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []