/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/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/cohendiv-ll_valuebound50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 19:47:12,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 19:47:12,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 19:47:12,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 19:47:12,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 19:47:12,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 19:47:12,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 19:47:12,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 19:47:12,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 19:47:12,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 19:47:12,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 19:47:12,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 19:47:12,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 19:47:12,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 19:47:12,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 19:47:12,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 19:47:12,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 19:47:12,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 19:47:12,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 19:47:12,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 19:47:12,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 19:47:12,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 19:47:12,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 19:47:12,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 19:47:12,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 19:47:12,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 19:47:12,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 19:47:12,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 19:47:12,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 19:47:12,394 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 19:47:12,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 19:47:12,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 19:47:12,397 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 19:47:12,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 19:47:12,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 19:47:12,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 19:47:12,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 19:47:12,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 19:47:12,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 19:47:12,398 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 19:47:12,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 19:47:12,398 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 19:47:12,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 19:47:12,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 19:47:12,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 19:47:12,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 19:47:12,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 19:47:12,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 19:47:12,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 19:47:12,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 19:47:12,400 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 19:47:12,400 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 19:47:12,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 19:47:12,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 19:47:12,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 19:47:12,665 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 19:47:12,667 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 19:47:12,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/cohendiv-ll_valuebound50.c [2021-05-02 19:47:12,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8171b6ec/b3659cf00a994a889629ff60d17025ae/FLAG7e9ef293b [2021-05-02 19:47:13,240 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 19:47:13,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/cohendiv-ll_valuebound50.c [2021-05-02 19:47:13,245 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8171b6ec/b3659cf00a994a889629ff60d17025ae/FLAG7e9ef293b [2021-05-02 19:47:13,721 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8171b6ec/b3659cf00a994a889629ff60d17025ae [2021-05-02 19:47:13,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 19:47:13,724 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 19:47:13,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 19:47:13,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 19:47:13,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 19:47:13,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 07:47:13" (1/1) ... [2021-05-02 19:47:13,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7897e56a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:47:13, skipping insertion in model container [2021-05-02 19:47:13,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 07:47:13" (1/1) ... [2021-05-02 19:47:13,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 19:47:13,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 19:47:13,817 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/cohendiv-ll_valuebound50.c[576,589] [2021-05-02 19:47:13,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 19:47:13,830 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 19:47:13,838 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/cohendiv-ll_valuebound50.c[576,589] [2021-05-02 19:47:13,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 19:47:13,873 INFO L208 MainTranslator]: Completed translation [2021-05-02 19:47:13,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:47:13 WrapperNode [2021-05-02 19:47:13,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 19:47:13,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 19:47:13,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 19:47:13,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 19:47:13,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:47:13" (1/1) ... [2021-05-02 19:47:13,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:47:13" (1/1) ... [2021-05-02 19:47:13,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:47:13" (1/1) ... [2021-05-02 19:47:13,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:47:13" (1/1) ... [2021-05-02 19:47:13,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:47:13" (1/1) ... [2021-05-02 19:47:13,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:47:13" (1/1) ... [2021-05-02 19:47:13,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:47:13" (1/1) ... [2021-05-02 19:47:13,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 19:47:13,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 19:47:13,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 19:47:13,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 19:47:13,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:47:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 19:47:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 19:47:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 19:47:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 19:47:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-02 19:47:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 19:47:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 19:47:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 19:47:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 19:47:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 19:47:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 19:47:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-02 19:47:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-02 19:47:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 19:47:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 19:47:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 19:47:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 19:47:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 19:47:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 19:47:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 19:47:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 19:47:14,224 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 19:47:14,224 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-05-02 19:47:14,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 07:47:14 BoogieIcfgContainer [2021-05-02 19:47:14,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 19:47:14,226 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 19:47:14,226 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 19:47:14,226 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 19:47:14,232 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 07:47:14" (1/1) ... [2021-05-02 19:47:14,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 07:47:14 BasicIcfg [2021-05-02 19:47:14,245 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 19:47:14,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 19:47:14,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 19:47:14,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 19:47:14,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 07:47:13" (1/4) ... [2021-05-02 19:47:14,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363142e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 07:47:14, skipping insertion in model container [2021-05-02 19:47:14,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:47:13" (2/4) ... [2021-05-02 19:47:14,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363142e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 07:47:14, skipping insertion in model container [2021-05-02 19:47:14,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 07:47:14" (3/4) ... [2021-05-02 19:47:14,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363142e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 07:47:14, skipping insertion in model container [2021-05-02 19:47:14,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 07:47:14" (4/4) ... [2021-05-02 19:47:14,251 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound50.cJordan [2021-05-02 19:47:14,255 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 19:47:14,257 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 19:47:14,267 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 19:47:14,278 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 19:47:14,278 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 19:47:14,279 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 19:47:14,279 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 19:47:14,279 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 19:47:14,279 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 19:47:14,279 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 19:47:14,279 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 19:47:14,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-02 19:47:14,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-02 19:47:14,304 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:47:14,304 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:47:14,304 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:47:14,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:47:14,310 INFO L82 PathProgramCache]: Analyzing trace with hash 795680375, now seen corresponding path program 1 times [2021-05-02 19:47:14,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:47:14,320 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369093635] [2021-05-02 19:47:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:47:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:47:14,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 19:47:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:47:14,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-02 19:47:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:47:14,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-05-02 19:47:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:47:14,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-05-02 19:47:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:47:14,504 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-02 19:47:14,504 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:47:14,504 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369093635] [2021-05-02 19:47:14,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369093635] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 19:47:14,505 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 19:47:14,505 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 19:47:14,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954013250] [2021-05-02 19:47:14,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 19:47:14,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:47:14,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 19:47:14,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 19:47:14,527 INFO L87 Difference]: Start difference. First operand has 39 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-05-02 19:47:14,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:47:14,618 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-05-02 19:47:14,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 19:47:14,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2021-05-02 19:47:14,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:47:14,624 INFO L225 Difference]: With dead ends: 39 [2021-05-02 19:47:14,625 INFO L226 Difference]: Without dead ends: 34 [2021-05-02 19:47:14,626 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 19:47:14,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-05-02 19:47:14,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-05-02 19:47:14,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-05-02 19:47:14,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2021-05-02 19:47:14,652 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 28 [2021-05-02 19:47:14,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:47:14,654 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2021-05-02 19:47:14,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-05-02 19:47:14,654 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2021-05-02 19:47:14,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-02 19:47:14,655 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:47:14,655 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:47:14,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 19:47:14,656 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:47:14,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:47:14,658 INFO L82 PathProgramCache]: Analyzing trace with hash 797557208, now seen corresponding path program 1 times [2021-05-02 19:47:14,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:47:14,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804971275] [2021-05-02 19:47:14,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:47:14,688 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:47:14,688 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700935589] [2021-05-02 19:47:14,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:47:14,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 25 conjunts are in the unsatisfiable core [2021-05-02 19:47:14,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:47:14,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:14,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:14,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:14,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:14,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:14,964 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-02 19:47:14,964 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:47:14,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804971275] [2021-05-02 19:47:14,964 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:47:14,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700935589] [2021-05-02 19:47:14,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700935589] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 19:47:14,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 19:47:14,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-02 19:47:14,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672905821] [2021-05-02 19:47:14,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-02 19:47:14,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:47:14,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-02 19:47:14,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-05-02 19:47:14,966 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-05-02 19:47:15,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:47:15,055 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2021-05-02 19:47:15,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-02 19:47:15,056 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2021-05-02 19:47:15,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:47:15,056 INFO L225 Difference]: With dead ends: 43 [2021-05-02 19:47:15,056 INFO L226 Difference]: Without dead ends: 43 [2021-05-02 19:47:15,057 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 75.0ms TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-05-02 19:47:15,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-05-02 19:47:15,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2021-05-02 19:47:15,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 24 states have internal predecessors, (25), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-02 19:47:15,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2021-05-02 19:47:15,064 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 28 [2021-05-02 19:47:15,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:47:15,065 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2021-05-02 19:47:15,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-05-02 19:47:15,065 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2021-05-02 19:47:15,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-02 19:47:15,065 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:47:15,066 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:47:15,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-02 19:47:15,273 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:47:15,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:47:15,274 INFO L82 PathProgramCache]: Analyzing trace with hash 648866686, now seen corresponding path program 1 times [2021-05-02 19:47:15,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:47:15,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643316188] [2021-05-02 19:47:15,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:47:15,284 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:47:15,284 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2077173843] [2021-05-02 19:47:15,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:47:15,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 25 conjunts are in the unsatisfiable core [2021-05-02 19:47:15,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:47:15,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:15,519 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-02 19:47:15,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:47:15,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643316188] [2021-05-02 19:47:15,520 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:47:15,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077173843] [2021-05-02 19:47:15,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077173843] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 19:47:15,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 19:47:15,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-02 19:47:15,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521235864] [2021-05-02 19:47:15,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-02 19:47:15,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:47:15,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-02 19:47:15,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-05-02 19:47:15,522 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2021-05-02 19:47:15,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:47:15,653 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2021-05-02 19:47:15,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-02 19:47:15,654 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 33 [2021-05-02 19:47:15,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:47:15,657 INFO L225 Difference]: With dead ends: 55 [2021-05-02 19:47:15,657 INFO L226 Difference]: Without dead ends: 54 [2021-05-02 19:47:15,658 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 61.2ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-05-02 19:47:15,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-05-02 19:47:15,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2021-05-02 19:47:15,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-02 19:47:15,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2021-05-02 19:47:15,664 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 33 [2021-05-02 19:47:15,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:47:15,664 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2021-05-02 19:47:15,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2021-05-02 19:47:15,664 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2021-05-02 19:47:15,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-02 19:47:15,665 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:47:15,665 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:47:15,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:15,882 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:47:15,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:47:15,883 INFO L82 PathProgramCache]: Analyzing trace with hash 619469170, now seen corresponding path program 1 times [2021-05-02 19:47:15,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:47:15,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275401144] [2021-05-02 19:47:15,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:47:15,893 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:47:15,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675853463] [2021-05-02 19:47:15,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:47:15,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-02 19:47:15,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:47:15,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:16,034 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-05-02 19:47:16,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:47:16,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275401144] [2021-05-02 19:47:16,034 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:47:16,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675853463] [2021-05-02 19:47:16,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675853463] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:47:16,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 19:47:16,035 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-05-02 19:47:16,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766896717] [2021-05-02 19:47:16,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-02 19:47:16,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:47:16,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-02 19:47:16,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-02 19:47:16,037 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-05-02 19:47:16,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:47:16,122 INFO L93 Difference]: Finished difference Result 77 states and 103 transitions. [2021-05-02 19:47:16,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-02 19:47:16,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 40 [2021-05-02 19:47:16,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:47:16,126 INFO L225 Difference]: With dead ends: 77 [2021-05-02 19:47:16,126 INFO L226 Difference]: Without dead ends: 77 [2021-05-02 19:47:16,128 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.0ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-05-02 19:47:16,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-05-02 19:47:16,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 70. [2021-05-02 19:47:16,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 40 states have internal predecessors, (44), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-02 19:47:16,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 92 transitions. [2021-05-02 19:47:16,142 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 92 transitions. Word has length 40 [2021-05-02 19:47:16,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:47:16,143 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 92 transitions. [2021-05-02 19:47:16,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-05-02 19:47:16,143 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 92 transitions. [2021-05-02 19:47:16,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-02 19:47:16,144 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:47:16,144 INFO L523 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:47:16,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:16,345 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:47:16,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:47:16,346 INFO L82 PathProgramCache]: Analyzing trace with hash -810208713, now seen corresponding path program 1 times [2021-05-02 19:47:16,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:47:16,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862965995] [2021-05-02 19:47:16,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:47:16,355 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:47:16,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109582363] [2021-05-02 19:47:16,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:47:16,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-02 19:47:16,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:47:16,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:16,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:16,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:16,544 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-05-02 19:47:16,544 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:47:16,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862965995] [2021-05-02 19:47:16,544 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:47:16,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109582363] [2021-05-02 19:47:16,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109582363] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:47:16,545 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 19:47:16,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-05-02 19:47:16,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502488225] [2021-05-02 19:47:16,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-02 19:47:16,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:47:16,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-02 19:47:16,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-05-02 19:47:16,546 INFO L87 Difference]: Start difference. First operand 70 states and 92 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-05-02 19:47:16,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:47:16,675 INFO L93 Difference]: Finished difference Result 74 states and 95 transitions. [2021-05-02 19:47:16,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-02 19:47:16,676 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 56 [2021-05-02 19:47:16,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:47:16,678 INFO L225 Difference]: With dead ends: 74 [2021-05-02 19:47:16,678 INFO L226 Difference]: Without dead ends: 74 [2021-05-02 19:47:16,678 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 61.2ms TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-05-02 19:47:16,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-05-02 19:47:16,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-05-02 19:47:16,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 41 states have (on average 1.146341463414634) internal successors, (47), 43 states have internal predecessors, (47), 25 states have call successors, (25), 8 states have call predecessors, (25), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-02 19:47:16,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2021-05-02 19:47:16,683 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 56 [2021-05-02 19:47:16,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:47:16,683 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2021-05-02 19:47:16,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-05-02 19:47:16,684 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2021-05-02 19:47:16,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-02 19:47:16,685 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:47:16,685 INFO L523 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:47:16,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:16,889 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:47:16,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:47:16,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1603019557, now seen corresponding path program 1 times [2021-05-02 19:47:16,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:47:16,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890084302] [2021-05-02 19:47:16,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:47:16,897 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:47:16,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [673590075] [2021-05-02 19:47:16,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:47:16,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 25 conjunts are in the unsatisfiable core [2021-05-02 19:47:16,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:47:16,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:16,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:16,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,148 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-05-02 19:47:17,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:47:17,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890084302] [2021-05-02 19:47:17,148 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:47:17,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673590075] [2021-05-02 19:47:17,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673590075] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:47:17,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 19:47:17,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-05-02 19:47:17,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764119699] [2021-05-02 19:47:17,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-02 19:47:17,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:47:17,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-02 19:47:17,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-05-02 19:47:17,149 INFO L87 Difference]: Start difference. First operand 74 states and 95 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2021-05-02 19:47:17,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:47:17,311 INFO L93 Difference]: Finished difference Result 95 states and 116 transitions. [2021-05-02 19:47:17,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-02 19:47:17,312 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 63 [2021-05-02 19:47:17,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:47:17,314 INFO L225 Difference]: With dead ends: 95 [2021-05-02 19:47:17,314 INFO L226 Difference]: Without dead ends: 85 [2021-05-02 19:47:17,314 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 71.0ms TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-05-02 19:47:17,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-05-02 19:47:17,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2021-05-02 19:47:17,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 49 states have internal predecessors, (52), 25 states have call successors, (25), 10 states have call predecessors, (25), 9 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-02 19:47:17,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 100 transitions. [2021-05-02 19:47:17,327 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 100 transitions. Word has length 63 [2021-05-02 19:47:17,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:47:17,328 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 100 transitions. [2021-05-02 19:47:17,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2021-05-02 19:47:17,328 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 100 transitions. [2021-05-02 19:47:17,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-05-02 19:47:17,330 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:47:17,330 INFO L523 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:47:17,533 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-05-02 19:47:17,533 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:47:17,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:47:17,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1439194403, now seen corresponding path program 1 times [2021-05-02 19:47:17,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:47:17,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080666708] [2021-05-02 19:47:17,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:47:17,541 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:47:17,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [650177175] [2021-05-02 19:47:17,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:47:17,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 41 conjunts are in the unsatisfiable core [2021-05-02 19:47:17,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:47:17,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:17,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,150 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 10 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-05-02 19:47:18,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:47:18,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080666708] [2021-05-02 19:47:18,151 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:47:18,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650177175] [2021-05-02 19:47:18,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650177175] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:47:18,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 19:47:18,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-05-02 19:47:18,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548750777] [2021-05-02 19:47:18,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-02 19:47:18,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:47:18,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-02 19:47:18,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-05-02 19:47:18,152 INFO L87 Difference]: Start difference. First operand 82 states and 100 transitions. Second operand has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 13 states have internal predecessors, (29), 7 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2021-05-02 19:47:18,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:47:18,578 INFO L93 Difference]: Finished difference Result 128 states and 160 transitions. [2021-05-02 19:47:18,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-02 19:47:18,579 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 13 states have internal predecessors, (29), 7 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) Word has length 86 [2021-05-02 19:47:18,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:47:18,580 INFO L225 Difference]: With dead ends: 128 [2021-05-02 19:47:18,580 INFO L226 Difference]: Without dead ends: 127 [2021-05-02 19:47:18,581 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 257.6ms TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2021-05-02 19:47:18,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-05-02 19:47:18,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 122. [2021-05-02 19:47:18,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 70 states have (on average 1.1142857142857143) internal successors, (78), 72 states have internal predecessors, (78), 38 states have call successors, (38), 14 states have call predecessors, (38), 13 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2021-05-02 19:47:18,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 152 transitions. [2021-05-02 19:47:18,587 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 152 transitions. Word has length 86 [2021-05-02 19:47:18,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:47:18,587 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 152 transitions. [2021-05-02 19:47:18,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 13 states have internal predecessors, (29), 7 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2021-05-02 19:47:18,587 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 152 transitions. [2021-05-02 19:47:18,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-05-02 19:47:18,588 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:47:18,588 INFO L523 BasicCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:47:18,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:18,801 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:47:18,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:47:18,801 INFO L82 PathProgramCache]: Analyzing trace with hash -2120729957, now seen corresponding path program 2 times [2021-05-02 19:47:18,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:47:18,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3546095] [2021-05-02 19:47:18,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:47:18,809 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:47:18,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1538758299] [2021-05-02 19:47:18,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:18,866 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 19:47:18,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 19:47:18,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 36 conjunts are in the unsatisfiable core [2021-05-02 19:47:18,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:47:18,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:18,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,226 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-05-02 19:47:19,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:47:19,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3546095] [2021-05-02 19:47:19,227 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:47:19,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538758299] [2021-05-02 19:47:19,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538758299] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:47:19,227 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 19:47:19,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-05-02 19:47:19,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650639793] [2021-05-02 19:47:19,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-02 19:47:19,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:47:19,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-02 19:47:19,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-05-02 19:47:19,228 INFO L87 Difference]: Start difference. First operand 122 states and 152 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 7 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) [2021-05-02 19:47:19,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:47:19,486 INFO L93 Difference]: Finished difference Result 160 states and 206 transitions. [2021-05-02 19:47:19,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-02 19:47:19,486 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 7 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) Word has length 109 [2021-05-02 19:47:19,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:47:19,488 INFO L225 Difference]: With dead ends: 160 [2021-05-02 19:47:19,488 INFO L226 Difference]: Without dead ends: 159 [2021-05-02 19:47:19,488 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 113.2ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-05-02 19:47:19,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-05-02 19:47:19,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 154. [2021-05-02 19:47:19,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 87 states have (on average 1.1264367816091954) internal successors, (98), 89 states have internal predecessors, (98), 51 states have call successors, (51), 16 states have call predecessors, (51), 15 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2021-05-02 19:47:19,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 198 transitions. [2021-05-02 19:47:19,495 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 198 transitions. Word has length 109 [2021-05-02 19:47:19,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:47:19,495 INFO L480 AbstractCegarLoop]: Abstraction has 154 states and 198 transitions. [2021-05-02 19:47:19,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 7 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) [2021-05-02 19:47:19,495 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 198 transitions. [2021-05-02 19:47:19,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-05-02 19:47:19,497 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:47:19,497 INFO L523 BasicCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:47:19,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:19,707 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:47:19,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:47:19,707 INFO L82 PathProgramCache]: Analyzing trace with hash 435194, now seen corresponding path program 3 times [2021-05-02 19:47:19,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:47:19,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474420322] [2021-05-02 19:47:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:47:19,714 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:47:19,714 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2066217269] [2021-05-02 19:47:19,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:19,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-05-02 19:47:19,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 19:47:19,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 37 conjunts are in the unsatisfiable core [2021-05-02 19:47:19,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:47:19,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:19,960 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 123 proven. 35 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2021-05-02 19:47:19,960 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:47:19,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474420322] [2021-05-02 19:47:19,960 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:47:19,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066217269] [2021-05-02 19:47:19,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066217269] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:47:19,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 19:47:19,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-05-02 19:47:19,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91914087] [2021-05-02 19:47:19,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-02 19:47:19,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:47:19,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-02 19:47:19,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-05-02 19:47:19,961 INFO L87 Difference]: Start difference. First operand 154 states and 198 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 5 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2021-05-02 19:47:24,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:47:24,223 INFO L93 Difference]: Finished difference Result 172 states and 216 transitions. [2021-05-02 19:47:24,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-02 19:47:24,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 5 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) Word has length 116 [2021-05-02 19:47:24,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:47:24,225 INFO L225 Difference]: With dead ends: 172 [2021-05-02 19:47:24,225 INFO L226 Difference]: Without dead ends: 170 [2021-05-02 19:47:24,225 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 85.0ms TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-05-02 19:47:24,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-05-02 19:47:24,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 141. [2021-05-02 19:47:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 84 states have (on average 1.0833333333333333) internal successors, (91), 86 states have internal predecessors, (91), 39 states have call successors, (39), 18 states have call predecessors, (39), 17 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2021-05-02 19:47:24,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 168 transitions. [2021-05-02 19:47:24,231 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 168 transitions. Word has length 116 [2021-05-02 19:47:24,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:47:24,231 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 168 transitions. [2021-05-02 19:47:24,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 5 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2021-05-02 19:47:24,231 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 168 transitions. [2021-05-02 19:47:24,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-05-02 19:47:24,232 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:47:24,232 INFO L523 BasicCegarLoop]: trace histogram [18, 17, 17, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:47:24,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-05-02 19:47:24,433 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:47:24,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:47:24,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1618316395, now seen corresponding path program 4 times [2021-05-02 19:47:24,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:47:24,434 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894350184] [2021-05-02 19:47:24,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:47:24,440 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:47:24,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [331003825] [2021-05-02 19:47:24,446 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:47:24,497 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-02 19:47:24,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 19:47:24,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-02 19:47:24,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:47:24,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:24,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:47:25,701 WARN L159 QuantifierPusher]: Ignoring assumption.