/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 07:06:44,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 07:06:44,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 07:06:44,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 07:06:44,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 07:06:44,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 07:06:44,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 07:06:44,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 07:06:44,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 07:06:44,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 07:06:44,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 07:06:44,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-19 07:06:44,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-19 07:06:44,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-19 07:06:44,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-19 07:06:44,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-19 07:06:44,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-19 07:06:44,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-19 07:06:44,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-19 07:06:44,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-19 07:06:44,823 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-19 07:06:44,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-19 07:06:44,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-19 07:06:44,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-19 07:06:44,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-19 07:06:44,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-19 07:06:44,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 07:06:44,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 07:06:44,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 07:06:44,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-19 07:06:44,848 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 07:06:44,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 07:06:44,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 07:06:44,850 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-19 07:06:44,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 07:06:44,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-19 07:06:44,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 07:06:44,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 07:06:44,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 07:06:44,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 07:06:44,851 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-19 07:06:44,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 07:06:44,851 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 07:06:44,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 07:06:44,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 07:06:44,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 07:06:44,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-19 07:06:44,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 07:06:44,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 07:06:44,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 07:06:44,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-19 07:06:44,852 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-19 07:06:44,852 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-19 07:06:44,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 07:06:44,852 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-19 07:06:44,852 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 07:06:45,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 07:06:45,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 07:06:45,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 07:06:45,131 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 07:06:45,132 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 07:06:45,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-03-19 07:06:45,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ada58e9/81fc5cd30082460391afa5dcc1f1a9a0/FLAG77dece77e [2022-03-19 07:06:45,822 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 07:06:45,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-03-19 07:06:45,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ada58e9/81fc5cd30082460391afa5dcc1f1a9a0/FLAG77dece77e [2022-03-19 07:06:46,117 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ada58e9/81fc5cd30082460391afa5dcc1f1a9a0 [2022-03-19 07:06:46,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 07:06:46,120 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 07:06:46,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 07:06:46,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 07:06:46,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 07:06:46,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 07:06:46" (1/1) ... [2022-03-19 07:06:46,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f78718a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:06:46, skipping insertion in model container [2022-03-19 07:06:46,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 07:06:46" (1/1) ... [2022-03-19 07:06:46,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 07:06:46,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 07:06:46,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c[73311,73324] [2022-03-19 07:06:46,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 07:06:46,498 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 07:06:46,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c[73311,73324] [2022-03-19 07:06:46,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 07:06:46,645 INFO L208 MainTranslator]: Completed translation [2022-03-19 07:06:46,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:06:46 WrapperNode [2022-03-19 07:06:46,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 07:06:46,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 07:06:46,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 07:06:46,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 07:06:46,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:06:46" (1/1) ... [2022-03-19 07:06:46,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:06:46" (1/1) ... [2022-03-19 07:06:46,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:06:46" (1/1) ... [2022-03-19 07:06:46,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:06:46" (1/1) ... [2022-03-19 07:06:46,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:06:46" (1/1) ... [2022-03-19 07:06:46,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:06:46" (1/1) ... [2022-03-19 07:06:46,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:06:46" (1/1) ... [2022-03-19 07:06:46,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 07:06:46,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 07:06:46,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 07:06:46,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 07:06:46,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:06:46" (1/1) ... [2022-03-19 07:06:46,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 07:06:46,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 07:06:46,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-19 07:06:46,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-19 07:06:46,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 07:06:46,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 07:06:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 07:06:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-19 07:06:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-19 07:06:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 07:06:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-19 07:06:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-19 07:06:46,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-19 07:06:46,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-19 07:06:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 07:06:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 07:06:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 07:06:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 07:06:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-19 07:06:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-19 07:06:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 07:06:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-19 07:06:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-19 07:06:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-19 07:06:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 07:06:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 07:06:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-19 07:06:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-19 07:06:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-19 07:06:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-19 07:06:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 07:06:46,944 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 07:06:46,945 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 07:06:47,675 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-19 07:06:48,060 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-19 07:06:48,060 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-19 07:06:48,072 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 07:06:48,080 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 07:06:48,080 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 07:06:48,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 07:06:48 BoogieIcfgContainer [2022-03-19 07:06:48,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 07:06:48,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 07:06:48,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 07:06:48,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 07:06:48,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 07:06:46" (1/3) ... [2022-03-19 07:06:48,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c006faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 07:06:48, skipping insertion in model container [2022-03-19 07:06:48,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 07:06:46" (2/3) ... [2022-03-19 07:06:48,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c006faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 07:06:48, skipping insertion in model container [2022-03-19 07:06:48,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 07:06:48" (3/3) ... [2022-03-19 07:06:48,089 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-2.c [2022-03-19 07:06:48,093 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-19 07:06:48,093 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 07:06:48,127 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 07:06:48,133 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-19 07:06:48,133 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 07:06:48,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-19 07:06:48,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-19 07:06:48,160 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 07:06:48,161 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 07:06:48,161 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 07:06:48,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 07:06:48,165 INFO L85 PathProgramCache]: Analyzing trace with hash 105535570, now seen corresponding path program 1 times [2022-03-19 07:06:48,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 07:06:48,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1740629215] [2022-03-19 07:06:48,179 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 07:06:48,179 INFO L85 PathProgramCache]: Analyzing trace with hash 105535570, now seen corresponding path program 2 times [2022-03-19 07:06:48,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 07:06:48,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58375060] [2022-03-19 07:06:48,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 07:06:48,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 07:06:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:06:48,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 07:06:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:06:48,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 07:06:48,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 07:06:48,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58375060] [2022-03-19 07:06:48,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58375060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:06:48,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:06:48,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:06:48,628 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 07:06:48,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1740629215] [2022-03-19 07:06:48,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1740629215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:06:48,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:06:48,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:06:48,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473388599] [2022-03-19 07:06:48,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 07:06:48,631 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 07:06:48,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 07:06:48,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 07:06:48,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 07:06:48,658 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:06:50,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 07:06:50,864 INFO L93 Difference]: Finished difference Result 421 states and 708 transitions. [2022-03-19 07:06:50,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 07:06:50,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-03-19 07:06:50,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 07:06:50,873 INFO L225 Difference]: With dead ends: 421 [2022-03-19 07:06:50,873 INFO L226 Difference]: Without dead ends: 255 [2022-03-19 07:06:50,876 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 07:06:50,878 INFO L912 BasicCegarLoop]: 151 mSDtfsCounter, 148 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-19 07:06:50,879 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 443 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-19 07:06:50,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-19 07:06:50,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 179. [2022-03-19 07:06:50,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5977011494252873) internal successors, (278), 174 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:06:50,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 282 transitions. [2022-03-19 07:06:50,924 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 282 transitions. Word has length 48 [2022-03-19 07:06:50,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 07:06:50,925 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 282 transitions. [2022-03-19 07:06:50,925 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:06:50,925 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 282 transitions. [2022-03-19 07:06:50,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-19 07:06:50,930 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 07:06:50,932 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 07:06:50,932 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 07:06:50,932 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 07:06:50,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 07:06:50,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1029867406, now seen corresponding path program 1 times [2022-03-19 07:06:50,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 07:06:50,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1490548583] [2022-03-19 07:06:50,934 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 07:06:50,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1029867406, now seen corresponding path program 2 times [2022-03-19 07:06:50,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 07:06:50,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834945886] [2022-03-19 07:06:50,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 07:06:50,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 07:06:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:06:51,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 07:06:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:06:51,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 07:06:51,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 07:06:51,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834945886] [2022-03-19 07:06:51,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834945886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:06:51,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:06:51,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:06:51,118 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 07:06:51,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1490548583] [2022-03-19 07:06:51,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1490548583] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:06:51,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:06:51,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:06:51,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876770218] [2022-03-19 07:06:51,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 07:06:51,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 07:06:51,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 07:06:51,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 07:06:51,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 07:06:51,120 INFO L87 Difference]: Start difference. First operand 179 states and 282 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:06:53,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 07:06:53,419 INFO L93 Difference]: Finished difference Result 458 states and 723 transitions. [2022-03-19 07:06:53,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 07:06:53,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-19 07:06:53,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 07:06:53,424 INFO L225 Difference]: With dead ends: 458 [2022-03-19 07:06:53,424 INFO L226 Difference]: Without dead ends: 294 [2022-03-19 07:06:53,427 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 07:06:53,431 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 115 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 07:06:53,431 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 07:06:53,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-03-19 07:06:53,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 219. [2022-03-19 07:06:53,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.644859813084112) internal successors, (352), 214 states have internal predecessors, (352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:06:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 356 transitions. [2022-03-19 07:06:53,453 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 356 transitions. Word has length 49 [2022-03-19 07:06:53,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 07:06:53,454 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 356 transitions. [2022-03-19 07:06:53,454 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:06:53,454 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 356 transitions. [2022-03-19 07:06:53,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-19 07:06:53,459 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 07:06:53,459 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 07:06:53,459 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 07:06:53,459 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 07:06:53,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 07:06:53,460 INFO L85 PathProgramCache]: Analyzing trace with hash -556118041, now seen corresponding path program 1 times [2022-03-19 07:06:53,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 07:06:53,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1040901750] [2022-03-19 07:06:53,508 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-19 07:06:53,508 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-19 07:06:53,508 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 07:06:53,509 INFO L85 PathProgramCache]: Analyzing trace with hash -556118041, now seen corresponding path program 2 times [2022-03-19 07:06:53,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 07:06:53,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581909370] [2022-03-19 07:06:53,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 07:06:53,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 07:06:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:06:53,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 07:06:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:06:53,664 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-19 07:06:53,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 07:06:53,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581909370] [2022-03-19 07:06:53,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581909370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:06:53,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:06:53,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:06:53,666 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 07:06:53,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1040901750] [2022-03-19 07:06:53,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1040901750] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:06:53,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:06:53,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:06:53,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212497386] [2022-03-19 07:06:53,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 07:06:53,667 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 07:06:53,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 07:06:53,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 07:06:53,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 07:06:53,668 INFO L87 Difference]: Start difference. First operand 219 states and 356 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:06:55,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 07:06:55,568 INFO L93 Difference]: Finished difference Result 451 states and 734 transitions. [2022-03-19 07:06:55,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 07:06:55,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-03-19 07:06:55,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 07:06:55,570 INFO L225 Difference]: With dead ends: 451 [2022-03-19 07:06:55,570 INFO L226 Difference]: Without dead ends: 247 [2022-03-19 07:06:55,571 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 07:06:55,571 INFO L912 BasicCegarLoop]: 180 mSDtfsCounter, 22 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-19 07:06:55,572 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 463 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-19 07:06:55,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-03-19 07:06:55,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 230. [2022-03-19 07:06:55,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6488888888888888) internal successors, (371), 225 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:06:55,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 375 transitions. [2022-03-19 07:06:55,583 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 375 transitions. Word has length 77 [2022-03-19 07:06:55,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 07:06:55,583 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 375 transitions. [2022-03-19 07:06:55,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:06:55,583 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 375 transitions. [2022-03-19 07:06:55,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-19 07:06:55,584 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 07:06:55,584 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 07:06:55,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 07:06:55,585 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 07:06:55,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 07:06:55,585 INFO L85 PathProgramCache]: Analyzing trace with hash -847556179, now seen corresponding path program 1 times [2022-03-19 07:06:55,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 07:06:55,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1919003999] [2022-03-19 07:06:55,593 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-19 07:06:55,593 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-19 07:06:55,593 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 07:06:55,593 INFO L85 PathProgramCache]: Analyzing trace with hash -847556179, now seen corresponding path program 2 times [2022-03-19 07:06:55,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 07:06:55,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899889782] [2022-03-19 07:06:55,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 07:06:55,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 07:06:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:06:55,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 07:06:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:06:55,702 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 07:06:55,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 07:06:55,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899889782] [2022-03-19 07:06:55,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899889782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:06:55,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:06:55,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:06:55,703 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 07:06:55,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1919003999] [2022-03-19 07:06:55,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1919003999] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:06:55,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:06:55,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:06:55,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968192657] [2022-03-19 07:06:55,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 07:06:55,704 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 07:06:55,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 07:06:55,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 07:06:55,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 07:06:55,704 INFO L87 Difference]: Start difference. First operand 230 states and 375 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:06:56,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 07:06:58,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 07:06:58,865 INFO L93 Difference]: Finished difference Result 549 states and 888 transitions. [2022-03-19 07:06:58,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 07:06:58,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-03-19 07:06:58,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 07:06:58,867 INFO L225 Difference]: With dead ends: 549 [2022-03-19 07:06:58,867 INFO L226 Difference]: Without dead ends: 345 [2022-03-19 07:06:58,867 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 07:06:58,868 INFO L912 BasicCegarLoop]: 248 mSDtfsCounter, 138 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-19 07:06:58,868 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 598 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-19 07:06:58,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-03-19 07:06:58,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 246. [2022-03-19 07:06:58,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.6390041493775933) internal successors, (395), 241 states have internal predecessors, (395), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:06:58,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 399 transitions. [2022-03-19 07:06:58,893 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 399 transitions. Word has length 90 [2022-03-19 07:06:58,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 07:06:58,893 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 399 transitions. [2022-03-19 07:06:58,893 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:06:58,894 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 399 transitions. [2022-03-19 07:06:58,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-19 07:06:58,894 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 07:06:58,895 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 07:06:58,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-19 07:06:58,895 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 07:06:58,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 07:06:58,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1839246915, now seen corresponding path program 1 times [2022-03-19 07:06:58,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 07:06:58,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1614252658] [2022-03-19 07:06:58,907 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-19 07:06:58,908 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-19 07:06:58,908 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 07:06:58,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1839246915, now seen corresponding path program 2 times [2022-03-19 07:06:58,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 07:06:58,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150779752] [2022-03-19 07:06:58,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 07:06:58,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 07:06:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:06:59,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 07:06:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:06:59,025 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 07:06:59,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 07:06:59,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150779752] [2022-03-19 07:06:59,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150779752] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:06:59,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:06:59,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:06:59,027 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 07:06:59,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1614252658] [2022-03-19 07:06:59,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1614252658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:06:59,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:06:59,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:06:59,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338614348] [2022-03-19 07:06:59,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 07:06:59,028 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 07:06:59,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 07:06:59,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 07:06:59,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 07:06:59,028 INFO L87 Difference]: Start difference. First operand 246 states and 399 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:07:00,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 07:07:02,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 07:07:02,419 INFO L93 Difference]: Finished difference Result 482 states and 781 transitions. [2022-03-19 07:07:02,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 07:07:02,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-03-19 07:07:02,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 07:07:02,421 INFO L225 Difference]: With dead ends: 482 [2022-03-19 07:07:02,421 INFO L226 Difference]: Without dead ends: 262 [2022-03-19 07:07:02,422 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 07:07:02,422 INFO L912 BasicCegarLoop]: 182 mSDtfsCounter, 28 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-19 07:07:02,423 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 467 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-19 07:07:02,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-03-19 07:07:02,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 246. [2022-03-19 07:07:02,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.6348547717842323) internal successors, (394), 241 states have internal predecessors, (394), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:07:02,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 398 transitions. [2022-03-19 07:07:02,431 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 398 transitions. Word has length 91 [2022-03-19 07:07:02,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 07:07:02,432 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 398 transitions. [2022-03-19 07:07:02,432 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:07:02,432 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 398 transitions. [2022-03-19 07:07:02,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-19 07:07:02,433 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 07:07:02,433 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 07:07:02,433 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-19 07:07:02,433 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 07:07:02,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 07:07:02,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1790326953, now seen corresponding path program 1 times [2022-03-19 07:07:02,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 07:07:02,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2003367176] [2022-03-19 07:07:02,440 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-19 07:07:02,440 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-19 07:07:02,440 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 07:07:02,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1790326953, now seen corresponding path program 2 times [2022-03-19 07:07:02,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 07:07:02,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316815399] [2022-03-19 07:07:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 07:07:02,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 07:07:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:07:02,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 07:07:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:07:02,588 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 07:07:02,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 07:07:02,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316815399] [2022-03-19 07:07:02,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316815399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:07:02,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:07:02,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:07:02,589 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 07:07:02,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2003367176] [2022-03-19 07:07:02,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2003367176] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:07:02,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:07:02,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:07:02,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429184574] [2022-03-19 07:07:02,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 07:07:02,590 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 07:07:02,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 07:07:02,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 07:07:02,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 07:07:02,591 INFO L87 Difference]: Start difference. First operand 246 states and 398 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:07:04,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 07:07:05,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 07:07:05,146 INFO L93 Difference]: Finished difference Result 541 states and 863 transitions. [2022-03-19 07:07:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 07:07:05,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-03-19 07:07:05,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 07:07:05,150 INFO L225 Difference]: With dead ends: 541 [2022-03-19 07:07:05,150 INFO L226 Difference]: Without dead ends: 321 [2022-03-19 07:07:05,151 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 07:07:05,151 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 142 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 07:07:05,152 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 340 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 07:07:05,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-03-19 07:07:05,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 246. [2022-03-19 07:07:05,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.6182572614107884) internal successors, (390), 241 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:07:05,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 394 transitions. [2022-03-19 07:07:05,160 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 394 transitions. Word has length 91 [2022-03-19 07:07:05,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 07:07:05,160 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 394 transitions. [2022-03-19 07:07:05,160 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:07:05,160 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 394 transitions. [2022-03-19 07:07:05,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-19 07:07:05,161 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 07:07:05,161 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 07:07:05,161 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-19 07:07:05,161 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 07:07:05,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 07:07:05,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1810194734, now seen corresponding path program 1 times [2022-03-19 07:07:05,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 07:07:05,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [691573581] [2022-03-19 07:07:05,176 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-19 07:07:05,176 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-19 07:07:05,176 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 07:07:05,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1810194734, now seen corresponding path program 2 times [2022-03-19 07:07:05,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 07:07:05,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256299094] [2022-03-19 07:07:05,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 07:07:05,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 07:07:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:07:05,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 07:07:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:07:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 07:07:05,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 07:07:05,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256299094] [2022-03-19 07:07:05,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256299094] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:07:05,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:07:05,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:07:05,285 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 07:07:05,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [691573581] [2022-03-19 07:07:05,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [691573581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:07:05,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:07:05,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:07:05,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669604039] [2022-03-19 07:07:05,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 07:07:05,286 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 07:07:05,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 07:07:05,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 07:07:05,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 07:07:05,286 INFO L87 Difference]: Start difference. First operand 246 states and 394 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:07:07,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 07:07:07,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 07:07:07,603 INFO L93 Difference]: Finished difference Result 480 states and 771 transitions. [2022-03-19 07:07:07,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 07:07:07,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-03-19 07:07:07,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 07:07:07,604 INFO L225 Difference]: With dead ends: 480 [2022-03-19 07:07:07,605 INFO L226 Difference]: Without dead ends: 260 [2022-03-19 07:07:07,605 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 07:07:07,606 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 07:07:07,606 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 471 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 07:07:07,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-03-19 07:07:07,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2022-03-19 07:07:07,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.6141078838174274) internal successors, (389), 241 states have internal predecessors, (389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:07:07,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 393 transitions. [2022-03-19 07:07:07,614 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 393 transitions. Word has length 91 [2022-03-19 07:07:07,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 07:07:07,614 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 393 transitions. [2022-03-19 07:07:07,614 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:07:07,614 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 393 transitions. [2022-03-19 07:07:07,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-19 07:07:07,615 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 07:07:07,615 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2022-03-19 07:07:07,615 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-19 07:07:07,615 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 07:07:07,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 07:07:07,615 INFO L85 PathProgramCache]: Analyzing trace with hash -370582543, now seen corresponding path program 1 times [2022-03-19 07:07:07,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 07:07:07,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [851454791] [2022-03-19 07:07:07,621 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-19 07:07:07,621 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-19 07:07:07,621 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 07:07:07,621 INFO L85 PathProgramCache]: Analyzing trace with hash -370582543, now seen corresponding path program 2 times [2022-03-19 07:07:07,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 07:07:07,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283770293] [2022-03-19 07:07:07,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 07:07:07,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 07:07:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:07:07,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 07:07:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 07:07:07,740 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 07:07:07,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 07:07:07,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283770293] [2022-03-19 07:07:07,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283770293] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:07:07,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:07:07,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:07:07,740 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 07:07:07,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [851454791] [2022-03-19 07:07:07,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [851454791] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 07:07:07,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 07:07:07,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 07:07:07,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811553161] [2022-03-19 07:07:07,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 07:07:07,741 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 07:07:07,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 07:07:07,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 07:07:07,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 07:07:07,742 INFO L87 Difference]: Start difference. First operand 246 states and 393 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:07:09,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 07:07:09,697 INFO L93 Difference]: Finished difference Result 540 states and 854 transitions. [2022-03-19 07:07:09,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 07:07:09,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-03-19 07:07:09,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 07:07:09,699 INFO L225 Difference]: With dead ends: 540 [2022-03-19 07:07:09,699 INFO L226 Difference]: Without dead ends: 320 [2022-03-19 07:07:09,700 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 07:07:09,700 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 135 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-19 07:07:09,700 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 342 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-19 07:07:09,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-03-19 07:07:09,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 246. [2022-03-19 07:07:09,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.6016597510373445) internal successors, (386), 241 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:07:09,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 390 transitions. [2022-03-19 07:07:09,709 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 390 transitions. Word has length 91 [2022-03-19 07:07:09,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 07:07:09,709 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 390 transitions. [2022-03-19 07:07:09,710 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 07:07:09,710 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 390 transitions. [2022-03-19 07:07:09,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-19 07:07:09,710 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 07:07:09,710 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 07:07:09,710 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-19 07:07:09,711 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 07:07:09,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 07:07:09,711 INFO L85 PathProgramCache]: Analyzing trace with hash 2098405732, now seen corresponding path program 1 times [2022-03-19 07:07:09,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 07:07:09,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1339267739] [2022-03-19 07:07:09,777 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 19 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-19 07:07:09,779 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-19 07:07:09,779 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-19 07:07:09,779 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-19 07:07:09,780 INFO L85 PathProgramCache]: Analyzing trace with hash -717890858, now seen corresponding path program 1 times [2022-03-19 07:07:09,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 07:07:09,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721919363] [2022-03-19 07:07:09,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 07:07:09,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 07:07:09,821 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-19 07:07:09,821 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.runStrategy(AcceleratedInterpolationCore.java:300) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:289) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAcceleratedInterpolation.construct(IpTcStrategyModuleAcceleratedInterpolation.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:596) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:471) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertCodeBlocks.java:109) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:313) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 40 more [2022-03-19 07:07:09,828 INFO L158 Benchmark]: Toolchain (without parser) took 23707.68ms. Allocated memory was 167.8MB in the beginning and 254.8MB in the end (delta: 87.0MB). Free memory was 116.5MB in the beginning and 127.5MB in the end (delta: -11.1MB). Peak memory consumption was 77.3MB. Max. memory is 8.0GB. [2022-03-19 07:07:09,828 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory was 135.2MB in the beginning and 135.2MB in the end (delta: 73.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-19 07:07:09,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.51ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 116.3MB in the beginning and 168.0MB in the end (delta: -51.7MB). Peak memory consumption was 13.3MB. Max. memory is 8.0GB. [2022-03-19 07:07:09,829 INFO L158 Benchmark]: Boogie Preprocessor took 110.52ms. Allocated memory is still 211.8MB. Free memory was 168.0MB in the beginning and 160.3MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-19 07:07:09,829 INFO L158 Benchmark]: RCFGBuilder took 1324.35ms. Allocated memory is still 211.8MB. Free memory was 160.3MB in the beginning and 147.4MB in the end (delta: 12.9MB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. [2022-03-19 07:07:09,829 INFO L158 Benchmark]: TraceAbstraction took 21742.90ms. Allocated memory was 211.8MB in the beginning and 254.8MB in the end (delta: 43.0MB). Free memory was 146.9MB in the beginning and 127.5MB in the end (delta: 19.4MB). Peak memory consumption was 62.4MB. Max. memory is 8.0GB. [2022-03-19 07:07:09,830 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory was 135.2MB in the beginning and 135.2MB in the end (delta: 73.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 524.51ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 116.3MB in the beginning and 168.0MB in the end (delta: -51.7MB). Peak memory consumption was 13.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 110.52ms. Allocated memory is still 211.8MB. Free memory was 168.0MB in the beginning and 160.3MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1324.35ms. Allocated memory is still 211.8MB. Free memory was 160.3MB in the beginning and 147.4MB in the end (delta: 12.9MB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. * TraceAbstraction took 21742.90ms. Allocated memory was 211.8MB in the beginning and 254.8MB in the end (delta: 43.0MB). Free memory was 146.9MB in the beginning and 127.5MB in the end (delta: 19.4MB). Peak memory consumption was 62.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-19 07:07:09,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...